Home / 8,115.46-11,191.57-4,929.27

Finding the Fourth Proportional to 8,115.46, 11,191.57 and 4,929.27

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Solution

The fourth proportional to 8,115.46, 11,191.57 and 4,929.27 is: 6,797.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.46 : 11,191.57 = 4,929.27 : x
  2. Step 2: Convert to fraction form
    8,115.46/11,191.57 = 4,929.27/x
  3. Step 3: Cross multiply
    8,115.46x = 11,191.57 × 4,929.27
  4. Step 4: Simplify right side
    8,115.46x = 55,166,278.91
  5. Step 5: Solve for x
    x = 55,166,278.91/8,115.46
  6. Step 6: Final answer
    x = 6,797.68

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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.