Home / 11,518.80-17,278.20-3,727.42

Finding the Fourth Proportional to 11,518.80, 17,278.20 and 3,727.42

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Solution

The fourth proportional to 11,518.80, 17,278.20 and 3,727.42 is: 5,591.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.80 : 17,278.20 = 3,727.42 : x
  2. Step 2: Convert to fraction form
    11,518.80/17,278.20 = 3,727.42/x
  3. Step 3: Cross multiply
    11,518.80x = 17,278.20 × 3,727.42
  4. Step 4: Simplify right side
    11,518.80x = 64,403,108.24
  5. Step 5: Solve for x
    x = 64,403,108.24/11,518.80
  6. Step 6: Final answer
    x = 5,591.13

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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.