Home / 18,228.26-25,155.24-11,158.58

Finding the Fourth Proportional to 18,228.26, 25,155.24 and 11,158.58

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Solution

The fourth proportional to 18,228.26, 25,155.24 and 11,158.58 is: 15,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.26 : 25,155.24 = 11,158.58 : x
  2. Step 2: Convert to fraction form
    18,228.26/25,155.24 = 11,158.58/x
  3. Step 3: Cross multiply
    18,228.26x = 25,155.24 × 11,158.58
  4. Step 4: Simplify right side
    18,228.26x = 280,696,757.96
  5. Step 5: Solve for x
    x = 280,696,757.96/18,228.26
  6. Step 6: Final answer
    x = 15,398.99

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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.