Home / 18,774.48-28,158.13-5,626.85

Finding the Fourth Proportional to 18,774.48, 28,158.13 and 5,626.85

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Solution

The fourth proportional to 18,774.48, 28,158.13 and 5,626.85 is: 8,439.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,774.48 : 28,158.13 = 5,626.85 : x
  2. Step 2: Convert to fraction form
    18,774.48/28,158.13 = 5,626.85/x
  3. Step 3: Cross multiply
    18,774.48x = 28,158.13 × 5,626.85
  4. Step 4: Simplify right side
    18,774.48x = 158,441,418.93
  5. Step 5: Solve for x
    x = 158,441,418.93/18,774.48
  6. Step 6: Final answer
    x = 8,439.19

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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.