Home / 10,249.02-15,385.68-8,625.78

Finding the Fourth Proportional to 10,249.02, 15,385.68 and 8,625.78

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Solution

The fourth proportional to 10,249.02, 15,385.68 and 8,625.78 is: 12,948.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,249.02 : 15,385.68 = 8,625.78 : x
  2. Step 2: Convert to fraction form
    10,249.02/15,385.68 = 8,625.78/x
  3. Step 3: Cross multiply
    10,249.02x = 15,385.68 × 8,625.78
  4. Step 4: Simplify right side
    10,249.02x = 132,713,490.83
  5. Step 5: Solve for x
    x = 132,713,490.83/10,249.02
  6. Step 6: Final answer
    x = 12,948.90

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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.