Home / 8,917.62-12,306.41-4,939.12

Finding the Fourth Proportional to 8,917.62, 12,306.41 and 4,939.12

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Solution

The fourth proportional to 8,917.62, 12,306.41 and 4,939.12 is: 6,816.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.62 : 12,306.41 = 4,939.12 : x
  2. Step 2: Convert to fraction form
    8,917.62/12,306.41 = 4,939.12/x
  3. Step 3: Cross multiply
    8,917.62x = 12,306.41 × 4,939.12
  4. Step 4: Simplify right side
    8,917.62x = 60,782,835.76
  5. Step 5: Solve for x
    x = 60,782,835.76/8,917.62
  6. Step 6: Final answer
    x = 6,816.04

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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.