Home / 18,275.32-25,216.56-11,103.76

Finding the Fourth Proportional to 18,275.32, 25,216.56 and 11,103.76

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Solution

The fourth proportional to 18,275.32, 25,216.56 and 11,103.76 is: 15,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.32 : 25,216.56 = 11,103.76 : x
  2. Step 2: Convert to fraction form
    18,275.32/25,216.56 = 11,103.76/x
  3. Step 3: Cross multiply
    18,275.32x = 25,216.56 × 11,103.76
  4. Step 4: Simplify right side
    18,275.32x = 279,998,630.27
  5. Step 5: Solve for x
    x = 279,998,630.27/18,275.32
  6. Step 6: Final answer
    x = 15,321.13

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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.