Home / 8,929.20-12,306.92-5,939.70

Finding the Fourth Proportional to 8,929.20, 12,306.92 and 5,939.70

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Solution

The fourth proportional to 8,929.20, 12,306.92 and 5,939.70 is: 8,186.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.20 : 12,306.92 = 5,939.70 : x
  2. Step 2: Convert to fraction form
    8,929.20/12,306.92 = 5,939.70/x
  3. Step 3: Cross multiply
    8,929.20x = 12,306.92 × 5,939.70
  4. Step 4: Simplify right side
    8,929.20x = 73,099,412.72
  5. Step 5: Solve for x
    x = 73,099,412.72/8,929.20
  6. Step 6: Final answer
    x = 8,186.56

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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.