Home / 12,173.44-18,279.36-7,576.96

Finding the Fourth Proportional to 12,173.44, 18,279.36 and 7,576.96

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Solution

The fourth proportional to 12,173.44, 18,279.36 and 7,576.96 is: 11,377.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.44 : 18,279.36 = 7,576.96 : x
  2. Step 2: Convert to fraction form
    12,173.44/18,279.36 = 7,576.96/x
  3. Step 3: Cross multiply
    12,173.44x = 18,279.36 × 7,576.96
  4. Step 4: Simplify right side
    12,173.44x = 138,501,979.55
  5. Step 5: Solve for x
    x = 138,501,979.55/12,173.44
  6. Step 6: Final answer
    x = 11,377.39

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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.