Home / 15,711.47-21,666.93-10,324.43

Finding the Fourth Proportional to 15,711.47, 21,666.93 and 10,324.43

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Solution

The fourth proportional to 15,711.47, 21,666.93 and 10,324.43 is: 14,237.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,711.47 : 21,666.93 = 10,324.43 : x
  2. Step 2: Convert to fraction form
    15,711.47/21,666.93 = 10,324.43/x
  3. Step 3: Cross multiply
    15,711.47x = 21,666.93 × 10,324.43
  4. Step 4: Simplify right side
    15,711.47x = 223,698,702.10
  5. Step 5: Solve for x
    x = 223,698,702.10/15,711.47
  6. Step 6: Final answer
    x = 14,237.92

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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.