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Finding the Fourth Proportional to 8,755.68, 13,133.42 and 2,515.85

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Solution

The fourth proportional to 8,755.68, 13,133.42 and 2,515.85 is: 3,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.68 : 13,133.42 = 2,515.85 : x
  2. Step 2: Convert to fraction form
    8,755.68/13,133.42 = 2,515.85/x
  3. Step 3: Cross multiply
    8,755.68x = 13,133.42 × 2,515.85
  4. Step 4: Simplify right side
    8,755.68x = 33,041,714.71
  5. Step 5: Solve for x
    x = 33,041,714.71/8,755.68
  6. Step 6: Final answer
    x = 3,773.75

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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.