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Finding the Fourth Proportional to 9,318.60, 13,979.82 and 6,349.74

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Solution

The fourth proportional to 9,318.60, 13,979.82 and 6,349.74 is: 9,525.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.60 : 13,979.82 = 6,349.74 : x
  2. Step 2: Convert to fraction form
    9,318.60/13,979.82 = 6,349.74/x
  3. Step 3: Cross multiply
    9,318.60x = 13,979.82 × 6,349.74
  4. Step 4: Simplify right side
    9,318.60x = 88,768,222.25
  5. Step 5: Solve for x
    x = 88,768,222.25/9,318.60
  6. Step 6: Final answer
    x = 9,525.92

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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.