Home / 12,151.19-18,226.79-3,386.34

Finding the Fourth Proportional to 12,151.19, 18,226.79 and 3,386.34

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Solution

The fourth proportional to 12,151.19, 18,226.79 and 3,386.34 is: 5,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.19 : 18,226.79 = 3,386.34 : x
  2. Step 2: Convert to fraction form
    12,151.19/18,226.79 = 3,386.34/x
  3. Step 3: Cross multiply
    12,151.19x = 18,226.79 × 3,386.34
  4. Step 4: Simplify right side
    12,151.19x = 61,722,025.38
  5. Step 5: Solve for x
    x = 61,722,025.38/12,151.19
  6. Step 6: Final answer
    x = 5,079.51

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.