Home / 13,614.28-20,386.86-10,872.52

Finding the Fourth Proportional to 13,614.28, 20,386.86 and 10,872.52

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Solution

The fourth proportional to 13,614.28, 20,386.86 and 10,872.52 is: 16,281.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,614.28 : 20,386.86 = 10,872.52 : x
  2. Step 2: Convert to fraction form
    13,614.28/20,386.86 = 10,872.52/x
  3. Step 3: Cross multiply
    13,614.28x = 20,386.86 × 10,872.52
  4. Step 4: Simplify right side
    13,614.28x = 221,656,543.09
  5. Step 5: Solve for x
    x = 221,656,543.09/13,614.28
  6. Step 6: Final answer
    x = 16,281.18

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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.