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Finding the Fourth Proportional to 8,702.16, 13,045.14 and 4,747.56

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Solution

The fourth proportional to 8,702.16, 13,045.14 and 4,747.56 is: 7,116.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.16 : 13,045.14 = 4,747.56 : x
  2. Step 2: Convert to fraction form
    8,702.16/13,045.14 = 4,747.56/x
  3. Step 3: Cross multiply
    8,702.16x = 13,045.14 × 4,747.56
  4. Step 4: Simplify right side
    8,702.16x = 61,932,584.86
  5. Step 5: Solve for x
    x = 61,932,584.86/8,702.16
  6. Step 6: Final answer
    x = 7,116.92

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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.