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Finding the Fourth Proportional to 14,640.57, 21,966.02 and 9,729.69

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Solution

The fourth proportional to 14,640.57, 21,966.02 and 9,729.69 is: 14,597.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.57 : 21,966.02 = 9,729.69 : x
  2. Step 2: Convert to fraction form
    14,640.57/21,966.02 = 9,729.69/x
  3. Step 3: Cross multiply
    14,640.57x = 21,966.02 × 9,729.69
  4. Step 4: Simplify right side
    14,640.57x = 213,722,516.49
  5. Step 5: Solve for x
    x = 213,722,516.49/14,640.57
  6. Step 6: Final answer
    x = 14,597.96

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1.5x scale

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.