Home / 16,565.20-24,815.40-9,971.80

Finding the Fourth Proportional to 16,565.20, 24,815.40 and 9,971.80

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Solution

The fourth proportional to 16,565.20, 24,815.40 and 9,971.80 is: 14,938.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,565.20 : 24,815.40 = 9,971.80 : x
  2. Step 2: Convert to fraction form
    16,565.20/24,815.40 = 9,971.80/x
  3. Step 3: Cross multiply
    16,565.20x = 24,815.40 × 9,971.80
  4. Step 4: Simplify right side
    16,565.20x = 247,454,205.72
  5. Step 5: Solve for x
    x = 247,454,205.72/16,565.20
  6. Step 6: Final answer
    x = 14,938.20

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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.