Home / 12,593.28-17,390.32-8,124.78

Finding the Fourth Proportional to 12,593.28, 17,390.32 and 8,124.78

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Solution

The fourth proportional to 12,593.28, 17,390.32 and 8,124.78 is: 11,219.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,593.28 : 17,390.32 = 8,124.78 : x
  2. Step 2: Convert to fraction form
    12,593.28/17,390.32 = 8,124.78/x
  3. Step 3: Cross multiply
    12,593.28x = 17,390.32 × 8,124.78
  4. Step 4: Simplify right side
    12,593.28x = 141,292,524.13
  5. Step 5: Solve for x
    x = 141,292,524.13/12,593.28
  6. Step 6: Final answer
    x = 11,219.68

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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.