Home / 18,862.48-28,290.12-7,176.88

Finding the Fourth Proportional to 18,862.48, 28,290.12 and 7,176.88

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Solution

The fourth proportional to 18,862.48, 28,290.12 and 7,176.88 is: 10,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.48 : 28,290.12 = 7,176.88 : x
  2. Step 2: Convert to fraction form
    18,862.48/28,290.12 = 7,176.88/x
  3. Step 3: Cross multiply
    18,862.48x = 28,290.12 × 7,176.88
  4. Step 4: Simplify right side
    18,862.48x = 203,034,796.43
  5. Step 5: Solve for x
    x = 203,034,796.43/18,862.48
  6. Step 6: Final answer
    x = 10,763.95

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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.