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Finding the Fourth Proportional to 9,249.60, 13,863.60 and 4,864.80

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Solution

The fourth proportional to 9,249.60, 13,863.60 and 4,864.80 is: 7,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,249.60 : 13,863.60 = 4,864.80 : x
  2. Step 2: Convert to fraction form
    9,249.60/13,863.60 = 4,864.80/x
  3. Step 3: Cross multiply
    9,249.60x = 13,863.60 × 4,864.80
  4. Step 4: Simplify right side
    9,249.60x = 67,443,641.28
  5. Step 5: Solve for x
    x = 67,443,641.28/9,249.60
  6. Step 6: Final answer
    x = 7,291.52

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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.