Home / 18,874.12-28,315.27-5,727.49

Finding the Fourth Proportional to 18,874.12, 28,315.27 and 5,727.49

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Solution

The fourth proportional to 18,874.12, 28,315.27 and 5,727.49 is: 8,592.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.12 : 28,315.27 = 5,727.49 : x
  2. Step 2: Convert to fraction form
    18,874.12/28,315.27 = 5,727.49/x
  3. Step 3: Cross multiply
    18,874.12x = 28,315.27 × 5,727.49
  4. Step 4: Simplify right side
    18,874.12x = 162,175,425.77
  5. Step 5: Solve for x
    x = 162,175,425.77/18,874.12
  6. Step 6: Final answer
    x = 8,592.48

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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.