Home / 15,175.80-22,755.60-6,400.80

Finding the Fourth Proportional to 15,175.80, 22,755.60 and 6,400.80

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Solution

The fourth proportional to 15,175.80, 22,755.60 and 6,400.80 is: 9,597.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.80 : 22,755.60 = 6,400.80 : x
  2. Step 2: Convert to fraction form
    15,175.80/22,755.60 = 6,400.80/x
  3. Step 3: Cross multiply
    15,175.80x = 22,755.60 × 6,400.80
  4. Step 4: Simplify right side
    15,175.80x = 145,654,044.48
  5. Step 5: Solve for x
    x = 145,654,044.48/15,175.80
  6. Step 6: Final answer
    x = 9,597.78

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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.