Home / 18,441.28-25,449.12-10,057.76

Finding the Fourth Proportional to 18,441.28, 25,449.12 and 10,057.76

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Solution

The fourth proportional to 18,441.28, 25,449.12 and 10,057.76 is: 13,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,441.28 : 25,449.12 = 10,057.76 : x
  2. Step 2: Convert to fraction form
    18,441.28/25,449.12 = 10,057.76/x
  3. Step 3: Cross multiply
    18,441.28x = 25,449.12 × 10,057.76
  4. Step 4: Simplify right side
    18,441.28x = 255,961,141.17
  5. Step 5: Solve for x
    x = 255,961,141.17/18,441.28
  6. Step 6: Final answer
    x = 13,879.79

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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.