Home / 18,230.89-25,169.55-11,954.20

Finding the Fourth Proportional to 18,230.89, 25,169.55 and 11,954.20

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Solution

The fourth proportional to 18,230.89, 25,169.55 and 11,954.20 is: 16,503.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,230.89 : 25,169.55 = 11,954.20 : x
  2. Step 2: Convert to fraction form
    18,230.89/25,169.55 = 11,954.20/x
  3. Step 3: Cross multiply
    18,230.89x = 25,169.55 × 11,954.20
  4. Step 4: Simplify right side
    18,230.89x = 300,881,834.61
  5. Step 5: Solve for x
    x = 300,881,834.61/18,230.89
  6. Step 6: Final answer
    x = 16,503.96

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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.