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Finding the Fourth Proportional to 6,288.70, 9,434.82 and 5,129.68

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Solution

The fourth proportional to 6,288.70, 9,434.82 and 5,129.68 is: 7,695.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.70 : 9,434.82 = 5,129.68 : x
  2. Step 2: Convert to fraction form
    6,288.70/9,434.82 = 5,129.68/x
  3. Step 3: Cross multiply
    6,288.70x = 9,434.82 × 5,129.68
  4. Step 4: Simplify right side
    6,288.70x = 48,397,607.46
  5. Step 5: Solve for x
    x = 48,397,607.46/6,288.70
  6. Step 6: Final answer
    x = 7,695.96

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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.