Home / 11,480.15-17,218.20-3,158.16

Finding the Fourth Proportional to 11,480.15, 17,218.20 and 3,158.16

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Solution

The fourth proportional to 11,480.15, 17,218.20 and 3,158.16 is: 4,736.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,480.15 : 17,218.20 = 3,158.16 : x
  2. Step 2: Convert to fraction form
    11,480.15/17,218.20 = 3,158.16/x
  3. Step 3: Cross multiply
    11,480.15x = 17,218.20 × 3,158.16
  4. Step 4: Simplify right side
    11,480.15x = 54,377,744.42
  5. Step 5: Solve for x
    x = 54,377,744.42/11,480.15
  6. Step 6: Final answer
    x = 4,736.68

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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.