Home / 18,146.68-25,040.55-10,189.78

Finding the Fourth Proportional to 18,146.68, 25,040.55 and 10,189.78

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Solution

The fourth proportional to 18,146.68, 25,040.55 and 10,189.78 is: 14,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,146.68 : 25,040.55 = 10,189.78 : x
  2. Step 2: Convert to fraction form
    18,146.68/25,040.55 = 10,189.78/x
  3. Step 3: Cross multiply
    18,146.68x = 25,040.55 × 10,189.78
  4. Step 4: Simplify right side
    18,146.68x = 255,157,695.58
  5. Step 5: Solve for x
    x = 255,157,695.58/18,146.68
  6. Step 6: Final answer
    x = 14,060.85

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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.