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Finding the Fourth Proportional to 8,913.42, 13,366.18 and 4,752.65

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Solution

The fourth proportional to 8,913.42, 13,366.18 and 4,752.65 is: 7,126.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.42 : 13,366.18 = 4,752.65 : x
  2. Step 2: Convert to fraction form
    8,913.42/13,366.18 = 4,752.65/x
  3. Step 3: Cross multiply
    8,913.42x = 13,366.18 × 4,752.65
  4. Step 4: Simplify right side
    8,913.42x = 63,524,796.91
  5. Step 5: Solve for x
    x = 63,524,796.91/8,913.42
  6. Step 6: Final answer
    x = 7,126.87

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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.