Home / 18,942.76-26,141.14-10,445.20

Finding the Fourth Proportional to 18,942.76, 26,141.14 and 10,445.20

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Solution

The fourth proportional to 18,942.76, 26,141.14 and 10,445.20 is: 14,414.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.76 : 26,141.14 = 10,445.20 : x
  2. Step 2: Convert to fraction form
    18,942.76/26,141.14 = 10,445.20/x
  3. Step 3: Cross multiply
    18,942.76x = 26,141.14 × 10,445.20
  4. Step 4: Simplify right side
    18,942.76x = 273,049,435.53
  5. Step 5: Solve for x
    x = 273,049,435.53/18,942.76
  6. Step 6: Final answer
    x = 14,414.45

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Find fourth proportional to 9,471.38, 13,070.57 and 5,222.60
Half scale
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Double scale
Find fourth proportional to 18,943.76, 26,142.52 and 10,446.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.