Home / 9,701.60-13,388.16-5,452.78

Finding the Fourth Proportional to 9,701.60, 13,388.16 and 5,452.78

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Solution

The fourth proportional to 9,701.60, 13,388.16 and 5,452.78 is: 7,524.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,701.60 : 13,388.16 = 5,452.78 : x
  2. Step 2: Convert to fraction form
    9,701.60/13,388.16 = 5,452.78/x
  3. Step 3: Cross multiply
    9,701.60x = 13,388.16 × 5,452.78
  4. Step 4: Simplify right side
    9,701.60x = 73,002,691.08
  5. Step 5: Solve for x
    x = 73,002,691.08/9,701.60
  6. Step 6: Final answer
    x = 7,524.81

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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.