Home / 18,766.12-28,124.34-9,982.12

Finding the Fourth Proportional to 18,766.12, 28,124.34 and 9,982.12

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Solution

The fourth proportional to 18,766.12, 28,124.34 and 9,982.12 is: 14,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.12 : 28,124.34 = 9,982.12 : x
  2. Step 2: Convert to fraction form
    18,766.12/28,124.34 = 9,982.12/x
  3. Step 3: Cross multiply
    18,766.12x = 28,124.34 × 9,982.12
  4. Step 4: Simplify right side
    18,766.12x = 280,740,536.80
  5. Step 5: Solve for x
    x = 280,740,536.80/18,766.12
  6. Step 6: Final answer
    x = 14,959.97

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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.