Home / 8,961.60-12,370.38-6,729.93

Finding the Fourth Proportional to 8,961.60, 12,370.38 and 6,729.93

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Solution

The fourth proportional to 8,961.60, 12,370.38 and 6,729.93 is: 9,289.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.60 : 12,370.38 = 6,729.93 : x
  2. Step 2: Convert to fraction form
    8,961.60/12,370.38 = 6,729.93/x
  3. Step 3: Cross multiply
    8,961.60x = 12,370.38 × 6,729.93
  4. Step 4: Simplify right side
    8,961.60x = 83,251,766.24
  5. Step 5: Solve for x
    x = 83,251,766.24/8,961.60
  6. Step 6: Final answer
    x = 9,289.83

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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.