Home / 8,754.28-12,081.13-5,351.83

Finding the Fourth Proportional to 8,754.28, 12,081.13 and 5,351.83

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Solution

The fourth proportional to 8,754.28, 12,081.13 and 5,351.83 is: 7,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.28 : 12,081.13 = 5,351.83 : x
  2. Step 2: Convert to fraction form
    8,754.28/12,081.13 = 5,351.83/x
  3. Step 3: Cross multiply
    8,754.28x = 12,081.13 × 5,351.83
  4. Step 4: Simplify right side
    8,754.28x = 64,656,110.39
  5. Step 5: Solve for x
    x = 64,656,110.39/8,754.28
  6. Step 6: Final answer
    x = 7,385.66

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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.