Home / 12,505.50-18,758.03-4,186.08

Finding the Fourth Proportional to 12,505.50, 18,758.03 and 4,186.08

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Solution

The fourth proportional to 12,505.50, 18,758.03 and 4,186.08 is: 6,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.50 : 18,758.03 = 4,186.08 : x
  2. Step 2: Convert to fraction form
    12,505.50/18,758.03 = 4,186.08/x
  3. Step 3: Cross multiply
    12,505.50x = 18,758.03 × 4,186.08
  4. Step 4: Simplify right side
    12,505.50x = 78,522,593.29
  5. Step 5: Solve for x
    x = 78,522,593.29/12,505.50
  6. Step 6: Final answer
    x = 6,279.04

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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.