Home / 18,862.96-28,288.52-6,380.66

Finding the Fourth Proportional to 18,862.96, 28,288.52 and 6,380.66

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Solution

The fourth proportional to 18,862.96, 28,288.52 and 6,380.66 is: 9,568.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.96 : 28,288.52 = 6,380.66 : x
  2. Step 2: Convert to fraction form
    18,862.96/28,288.52 = 6,380.66/x
  3. Step 3: Cross multiply
    18,862.96x = 28,288.52 × 6,380.66
  4. Step 4: Simplify right side
    18,862.96x = 180,499,428.02
  5. Step 5: Solve for x
    x = 180,499,428.02/18,862.96
  6. Step 6: Final answer
    x = 9,568.99

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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.