Home / 14,721.55-20,313.89-9,951.87

Finding the Fourth Proportional to 14,721.55, 20,313.89 and 9,951.87

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Solution

The fourth proportional to 14,721.55, 20,313.89 and 9,951.87 is: 13,732.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,721.55 : 20,313.89 = 9,951.87 : x
  2. Step 2: Convert to fraction form
    14,721.55/20,313.89 = 9,951.87/x
  3. Step 3: Cross multiply
    14,721.55x = 20,313.89 × 9,951.87
  4. Step 4: Simplify right side
    14,721.55x = 202,161,113.38
  5. Step 5: Solve for x
    x = 202,161,113.38/14,721.55
  6. Step 6: Final answer
    x = 13,732.33

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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.