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Finding the Fourth Proportional to 9,321.59, 13,982.39 and 6,391.01

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Solution

The fourth proportional to 9,321.59, 13,982.39 and 6,391.01 is: 9,586.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,321.59 : 13,982.39 = 6,391.01 : x
  2. Step 2: Convert to fraction form
    9,321.59/13,982.39 = 6,391.01/x
  3. Step 3: Cross multiply
    9,321.59x = 13,982.39 × 6,391.01
  4. Step 4: Simplify right side
    9,321.59x = 89,361,597.31
  5. Step 5: Solve for x
    x = 89,361,597.31/9,321.59
  6. Step 6: Final answer
    x = 9,586.52

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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.