Home / 12,186.62-18,279.93-4,395.44

Finding the Fourth Proportional to 12,186.62, 18,279.93 and 4,395.44

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Solution

The fourth proportional to 12,186.62, 18,279.93 and 4,395.44 is: 6,593.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.62 : 18,279.93 = 4,395.44 : x
  2. Step 2: Convert to fraction form
    12,186.62/18,279.93 = 4,395.44/x
  3. Step 3: Cross multiply
    12,186.62x = 18,279.93 × 4,395.44
  4. Step 4: Simplify right side
    12,186.62x = 80,348,244.12
  5. Step 5: Solve for x
    x = 80,348,244.12/12,186.62
  6. Step 6: Final answer
    x = 6,593.16

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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.