Home / 8,159.13-12,240.20-3,479.13

Finding the Fourth Proportional to 8,159.13, 12,240.20 and 3,479.13

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Solution

The fourth proportional to 8,159.13, 12,240.20 and 3,479.13 is: 5,219.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,159.13 : 12,240.20 = 3,479.13 : x
  2. Step 2: Convert to fraction form
    8,159.13/12,240.20 = 3,479.13/x
  3. Step 3: Cross multiply
    8,159.13x = 12,240.20 × 3,479.13
  4. Step 4: Simplify right side
    8,159.13x = 42,585,247.03
  5. Step 5: Solve for x
    x = 42,585,247.03/8,159.13
  6. Step 6: Final answer
    x = 5,219.34

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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.