Home / 9,318.20-13,979.10-2,744.60

Finding the Fourth Proportional to 9,318.20, 13,979.10 and 2,744.60

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Solution

The fourth proportional to 9,318.20, 13,979.10 and 2,744.60 is: 4,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,318.20 : 13,979.10 = 2,744.60 : x
  2. Step 2: Convert to fraction form
    9,318.20/13,979.10 = 2,744.60/x
  3. Step 3: Cross multiply
    9,318.20x = 13,979.10 × 2,744.60
  4. Step 4: Simplify right side
    9,318.20x = 38,367,037.86
  5. Step 5: Solve for x
    x = 38,367,037.86/9,318.20
  6. Step 6: Final answer
    x = 4,117.43

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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.