Home / 18,766.20-28,149.27-7,526.61

Finding the Fourth Proportional to 18,766.20, 28,149.27 and 7,526.61

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Solution

The fourth proportional to 18,766.20, 28,149.27 and 7,526.61 is: 11,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,766.20 : 28,149.27 = 7,526.61 : x
  2. Step 2: Convert to fraction form
    18,766.20/28,149.27 = 7,526.61/x
  3. Step 3: Cross multiply
    18,766.20x = 28,149.27 × 7,526.61
  4. Step 4: Simplify right side
    18,766.20x = 211,868,577.07
  5. Step 5: Solve for x
    x = 211,868,577.07/18,766.20
  6. Step 6: Final answer
    x = 11,289.90

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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.