Home / 9,261.62-12,781.83-5,282.90

Finding the Fourth Proportional to 9,261.62, 12,781.83 and 5,282.90

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Solution

The fourth proportional to 9,261.62, 12,781.83 and 5,282.90 is: 7,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.62 : 12,781.83 = 5,282.90 : x
  2. Step 2: Convert to fraction form
    9,261.62/12,781.83 = 5,282.90/x
  3. Step 3: Cross multiply
    9,261.62x = 12,781.83 × 5,282.90
  4. Step 4: Simplify right side
    9,261.62x = 67,525,129.71
  5. Step 5: Solve for x
    x = 67,525,129.71/9,261.62
  6. Step 6: Final answer
    x = 7,290.86

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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.