Home / 18,177.40-25,074.12-11,451.16

Finding the Fourth Proportional to 18,177.40, 25,074.12 and 11,451.16

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Solution

The fourth proportional to 18,177.40, 25,074.12 and 11,451.16 is: 15,795.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,177.40 : 25,074.12 = 11,451.16 : x
  2. Step 2: Convert to fraction form
    18,177.40/25,074.12 = 11,451.16/x
  3. Step 3: Cross multiply
    18,177.40x = 25,074.12 × 11,451.16
  4. Step 4: Simplify right side
    18,177.40x = 287,127,759.98
  5. Step 5: Solve for x
    x = 287,127,759.98/18,177.40
  6. Step 6: Final answer
    x = 15,795.87

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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.