Home / 18,389.68-27,589.12-5,910.80

Finding the Fourth Proportional to 18,389.68, 27,589.12 and 5,910.80

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Solution

The fourth proportional to 18,389.68, 27,589.12 and 5,910.80 is: 8,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.68 : 27,589.12 = 5,910.80 : x
  2. Step 2: Convert to fraction form
    18,389.68/27,589.12 = 5,910.80/x
  3. Step 3: Cross multiply
    18,389.68x = 27,589.12 × 5,910.80
  4. Step 4: Simplify right side
    18,389.68x = 163,073,770.50
  5. Step 5: Solve for x
    x = 163,073,770.50/18,389.68
  6. Step 6: Final answer
    x = 8,867.68

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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.