Home / 14,489.14-19,990.32-8,114.76

Finding the Fourth Proportional to 14,489.14, 19,990.32 and 8,114.76

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Solution

The fourth proportional to 14,489.14, 19,990.32 and 8,114.76 is: 11,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,489.14 : 19,990.32 = 8,114.76 : x
  2. Step 2: Convert to fraction form
    14,489.14/19,990.32 = 8,114.76/x
  3. Step 3: Cross multiply
    14,489.14x = 19,990.32 × 8,114.76
  4. Step 4: Simplify right side
    14,489.14x = 162,216,649.12
  5. Step 5: Solve for x
    x = 162,216,649.12/14,489.14
  6. Step 6: Final answer
    x = 11,195.74

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Double scale
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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.