Home / 8,754.16-12,079.92-5,168.56

Finding the Fourth Proportional to 8,754.16, 12,079.92 and 5,168.56

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Solution

The fourth proportional to 8,754.16, 12,079.92 and 5,168.56 is: 7,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,754.16 : 12,079.92 = 5,168.56 : x
  2. Step 2: Convert to fraction form
    8,754.16/12,079.92 = 5,168.56/x
  3. Step 3: Cross multiply
    8,754.16x = 12,079.92 × 5,168.56
  4. Step 4: Simplify right side
    8,754.16x = 62,435,791.32
  5. Step 5: Solve for x
    x = 62,435,791.32/8,754.16
  6. Step 6: Final answer
    x = 7,132.13

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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.