Home / 18,862.08-28,291.20-5,012.16

Finding the Fourth Proportional to 18,862.08, 28,291.20 and 5,012.16

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Solution

The fourth proportional to 18,862.08, 28,291.20 and 5,012.16 is: 7,517.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.08 : 28,291.20 = 5,012.16 : x
  2. Step 2: Convert to fraction form
    18,862.08/28,291.20 = 5,012.16/x
  3. Step 3: Cross multiply
    18,862.08x = 28,291.20 × 5,012.16
  4. Step 4: Simplify right side
    18,862.08x = 141,800,020.99
  5. Step 5: Solve for x
    x = 141,800,020.99/18,862.08
  6. Step 6: Final answer
    x = 7,517.73

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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.