Home / 12,187.08-18,279.90-5,266.44

Finding the Fourth Proportional to 12,187.08, 18,279.90 and 5,266.44

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Solution

The fourth proportional to 12,187.08, 18,279.90 and 5,266.44 is: 7,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.08 : 18,279.90 = 5,266.44 : x
  2. Step 2: Convert to fraction form
    12,187.08/18,279.90 = 5,266.44/x
  3. Step 3: Cross multiply
    12,187.08x = 18,279.90 × 5,266.44
  4. Step 4: Simplify right side
    12,187.08x = 96,269,996.56
  5. Step 5: Solve for x
    x = 96,269,996.56/12,187.08
  6. Step 6: Final answer
    x = 7,899.35

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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.