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Finding the Fourth Proportional to 8,702.76, 13,045.38 and 5,003.88

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Solution

The fourth proportional to 8,702.76, 13,045.38 and 5,003.88 is: 7,500.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702.76 : 13,045.38 = 5,003.88 : x
  2. Step 2: Convert to fraction form
    8,702.76/13,045.38 = 5,003.88/x
  3. Step 3: Cross multiply
    8,702.76x = 13,045.38 × 5,003.88
  4. Step 4: Simplify right side
    8,702.76x = 65,277,516.07
  5. Step 5: Solve for x
    x = 65,277,516.07/8,702.76
  6. Step 6: Final answer
    x = 7,500.78

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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.