Home / 13,753.16-18,979.66-8,375.84

Finding the Fourth Proportional to 13,753.16, 18,979.66 and 8,375.84

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Solution

The fourth proportional to 13,753.16, 18,979.66 and 8,375.84 is: 11,558.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,753.16 : 18,979.66 = 8,375.84 : x
  2. Step 2: Convert to fraction form
    13,753.16/18,979.66 = 8,375.84/x
  3. Step 3: Cross multiply
    13,753.16x = 18,979.66 × 8,375.84
  4. Step 4: Simplify right side
    13,753.16x = 158,970,624.01
  5. Step 5: Solve for x
    x = 158,970,624.01/13,753.16
  6. Step 6: Final answer
    x = 11,558.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.