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Finding the Fourth Proportional to 14,650.20, 20,217.02 and 7,935.78

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Solution

The fourth proportional to 14,650.20, 20,217.02 and 7,935.78 is: 10,951.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,650.20 : 20,217.02 = 7,935.78 : x
  2. Step 2: Convert to fraction form
    14,650.20/20,217.02 = 7,935.78/x
  3. Step 3: Cross multiply
    14,650.20x = 20,217.02 × 7,935.78
  4. Step 4: Simplify right side
    14,650.20x = 160,437,822.98
  5. Step 5: Solve for x
    x = 160,437,822.98/14,650.20
  6. Step 6: Final answer
    x = 10,951.24

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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.