Home / 18,117.24-27,187.42-8,257.52

Finding the Fourth Proportional to 18,117.24, 27,187.42 and 8,257.52

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Solution

The fourth proportional to 18,117.24, 27,187.42 and 8,257.52 is: 12,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,117.24 : 27,187.42 = 8,257.52 : x
  2. Step 2: Convert to fraction form
    18,117.24/27,187.42 = 8,257.52/x
  3. Step 3: Cross multiply
    18,117.24x = 27,187.42 × 8,257.52
  4. Step 4: Simplify right side
    18,117.24x = 224,500,664.40
  5. Step 5: Solve for x
    x = 224,500,664.40/18,117.24
  6. Step 6: Final answer
    x = 12,391.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.