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Finding the Fourth Proportional to 9,125.10, 13,687.65 and 6,209.10

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Solution

The fourth proportional to 9,125.10, 13,687.65 and 6,209.10 is: 9,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.10 : 13,687.65 = 6,209.10 : x
  2. Step 2: Convert to fraction form
    9,125.10/13,687.65 = 6,209.10/x
  3. Step 3: Cross multiply
    9,125.10x = 13,687.65 × 6,209.10
  4. Step 4: Simplify right side
    9,125.10x = 84,987,987.62
  5. Step 5: Solve for x
    x = 84,987,987.62/9,125.10
  6. Step 6: Final answer
    x = 9,313.65

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Similar ratio
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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.