Home / 18,833.16-28,257.18-7,149.48

Finding the Fourth Proportional to 18,833.16, 28,257.18 and 7,149.48

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Solution

The fourth proportional to 18,833.16, 28,257.18 and 7,149.48 is: 10,727.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,833.16 : 28,257.18 = 7,149.48 : x
  2. Step 2: Convert to fraction form
    18,833.16/28,257.18 = 7,149.48/x
  3. Step 3: Cross multiply
    18,833.16x = 28,257.18 × 7,149.48
  4. Step 4: Simplify right side
    18,833.16x = 202,024,143.27
  5. Step 5: Solve for x
    x = 202,024,143.27/18,833.16
  6. Step 6: Final answer
    x = 10,727.04

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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.