Home / 9,318.12-13,977.18-6,387.54

Finding the Fourth Proportional to 9,318.12, 13,977.18 and 6,387.54

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Solution

The fourth proportional to 9,318.12, 13,977.18 and 6,387.54 is: 9,581.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.12 : 13,977.18 = 6,387.54 : x
  2. Step 2: Convert to fraction form
    9,318.12/13,977.18 = 6,387.54/x
  3. Step 3: Cross multiply
    9,318.12x = 13,977.18 × 6,387.54
  4. Step 4: Simplify right side
    9,318.12x = 89,279,796.34
  5. Step 5: Solve for x
    x = 89,279,796.34/9,318.12
  6. Step 6: Final answer
    x = 9,581.31

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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.