Home / 14,943.38-20,614.93-9,639.90

Finding the Fourth Proportional to 14,943.38, 20,614.93 and 9,639.90

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Solution

The fourth proportional to 14,943.38, 20,614.93 and 9,639.90 is: 13,298.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,943.38 : 20,614.93 = 9,639.90 : x
  2. Step 2: Convert to fraction form
    14,943.38/20,614.93 = 9,639.90/x
  3. Step 3: Cross multiply
    14,943.38x = 20,614.93 × 9,639.90
  4. Step 4: Simplify right side
    14,943.38x = 198,725,863.71
  5. Step 5: Solve for x
    x = 198,725,863.71/14,943.38
  6. Step 6: Final answer
    x = 13,298.59

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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.