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Finding the Fourth Proportional to 9,165.30, 13,715.55 and 6,249.30

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Solution

The fourth proportional to 9,165.30, 13,715.55 and 6,249.30 is: 9,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.30 : 13,715.55 = 6,249.30 : x
  2. Step 2: Convert to fraction form
    9,165.30/13,715.55 = 6,249.30/x
  3. Step 3: Cross multiply
    9,165.30x = 13,715.55 × 6,249.30
  4. Step 4: Simplify right side
    9,165.30x = 85,712,586.62
  5. Step 5: Solve for x
    x = 85,712,586.62/9,165.30
  6. Step 6: Final answer
    x = 9,351.86

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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.