Home / 15,414.71-21,272.31-8,341.13

Finding the Fourth Proportional to 15,414.71, 21,272.31 and 8,341.13

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Solution

The fourth proportional to 15,414.71, 21,272.31 and 8,341.13 is: 11,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,414.71 : 21,272.31 = 8,341.13 : x
  2. Step 2: Convert to fraction form
    15,414.71/21,272.31 = 8,341.13/x
  3. Step 3: Cross multiply
    15,414.71x = 21,272.31 × 8,341.13
  4. Step 4: Simplify right side
    15,414.71x = 177,435,103.11
  5. Step 5: Solve for x
    x = 177,435,103.11/15,414.71
  6. Step 6: Final answer
    x = 11,510.76

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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.