Home / 8,757.15-13,136.55-3,490.89

Finding the Fourth Proportional to 8,757.15, 13,136.55 and 3,490.89

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Solution

The fourth proportional to 8,757.15, 13,136.55 and 3,490.89 is: 5,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,757.15 : 13,136.55 = 3,490.89 : x
  2. Step 2: Convert to fraction form
    8,757.15/13,136.55 = 3,490.89/x
  3. Step 3: Cross multiply
    8,757.15x = 13,136.55 × 3,490.89
  4. Step 4: Simplify right side
    8,757.15x = 45,858,251.03
  5. Step 5: Solve for x
    x = 45,858,251.03/8,757.15
  6. Step 6: Final answer
    x = 5,236.66

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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.