Home / 9,261.92-12,781.42-5,283.02

Finding the Fourth Proportional to 9,261.92, 12,781.42 and 5,283.02

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Solution

The fourth proportional to 9,261.92, 12,781.42 and 5,283.02 is: 7,290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.92 : 12,781.42 = 5,283.02 : x
  2. Step 2: Convert to fraction form
    9,261.92/12,781.42 = 5,283.02/x
  3. Step 3: Cross multiply
    9,261.92x = 12,781.42 × 5,283.02
  4. Step 4: Simplify right side
    9,261.92x = 67,524,516.23
  5. Step 5: Solve for x
    x = 67,524,516.23/9,261.92
  6. Step 6: Final answer
    x = 7,290.55

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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.