Home / 9,292.20-12,799.56-8,679.84

Finding the Fourth Proportional to 9,292.20, 12,799.56 and 8,679.84

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Solution

The fourth proportional to 9,292.20, 12,799.56 and 8,679.84 is: 11,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,292.20 : 12,799.56 = 8,679.84 : x
  2. Step 2: Convert to fraction form
    9,292.20/12,799.56 = 8,679.84/x
  3. Step 3: Cross multiply
    9,292.20x = 12,799.56 × 8,679.84
  4. Step 4: Simplify right side
    9,292.20x = 111,098,132.87
  5. Step 5: Solve for x
    x = 111,098,132.87/9,292.20
  6. Step 6: Final answer
    x = 11,956.06

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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.