Home / 8,663.44-12,996.36-3,115.75

Finding the Fourth Proportional to 8,663.44, 12,996.36 and 3,115.75

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Solution

The fourth proportional to 8,663.44, 12,996.36 and 3,115.75 is: 4,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,663.44 : 12,996.36 = 3,115.75 : x
  2. Step 2: Convert to fraction form
    8,663.44/12,996.36 = 3,115.75/x
  3. Step 3: Cross multiply
    8,663.44x = 12,996.36 × 3,115.75
  4. Step 4: Simplify right side
    8,663.44x = 40,493,393.09
  5. Step 5: Solve for x
    x = 40,493,393.09/8,663.44
  6. Step 6: Final answer
    x = 4,674.05

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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.