Home / 15,127.25-20,874.00-8,411.79

Finding the Fourth Proportional to 15,127.25, 20,874.00 and 8,411.79

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Solution

The fourth proportional to 15,127.25, 20,874.00 and 8,411.79 is: 11,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,127.25 : 20,874.00 = 8,411.79 : x
  2. Step 2: Convert to fraction form
    15,127.25/20,874.00 = 8,411.79/x
  3. Step 3: Cross multiply
    15,127.25x = 20,874.00 × 8,411.79
  4. Step 4: Simplify right side
    15,127.25x = 175,587,755.57
  5. Step 5: Solve for x
    x = 175,587,755.57/15,127.25
  6. Step 6: Final answer
    x = 11,607.38

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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.