Home / 9,528.47-13,149.11-5,279.44

Finding the Fourth Proportional to 9,528.47, 13,149.11 and 5,279.44

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Solution

The fourth proportional to 9,528.47, 13,149.11 and 5,279.44 is: 7,285.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,528.47 : 13,149.11 = 5,279.44 : x
  2. Step 2: Convert to fraction form
    9,528.47/13,149.11 = 5,279.44/x
  3. Step 3: Cross multiply
    9,528.47x = 13,149.11 × 5,279.44
  4. Step 4: Simplify right side
    9,528.47x = 69,419,937.30
  5. Step 5: Solve for x
    x = 69,419,937.30/9,528.47
  6. Step 6: Final answer
    x = 7,285.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.