Home / 18,197.28-25,099.68-11,127.18

Finding the Fourth Proportional to 18,197.28, 25,099.68 and 11,127.18

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Solution

The fourth proportional to 18,197.28, 25,099.68 and 11,127.18 is: 15,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.28 : 25,099.68 = 11,127.18 : x
  2. Step 2: Convert to fraction form
    18,197.28/25,099.68 = 11,127.18/x
  3. Step 3: Cross multiply
    18,197.28x = 25,099.68 × 11,127.18
  4. Step 4: Simplify right side
    18,197.28x = 279,288,657.30
  5. Step 5: Solve for x
    x = 279,288,657.30/18,197.28
  6. Step 6: Final answer
    x = 15,347.82

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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.