Home / 8,119.17-12,179.16-2,572.65

Finding the Fourth Proportional to 8,119.17, 12,179.16 and 2,572.65

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Solution

The fourth proportional to 8,119.17, 12,179.16 and 2,572.65 is: 3,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.17 : 12,179.16 = 2,572.65 : x
  2. Step 2: Convert to fraction form
    8,119.17/12,179.16 = 2,572.65/x
  3. Step 3: Cross multiply
    8,119.17x = 12,179.16 × 2,572.65
  4. Step 4: Simplify right side
    8,119.17x = 31,332,715.97
  5. Step 5: Solve for x
    x = 31,332,715.97/8,119.17
  6. Step 6: Final answer
    x = 3,859.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.