Home / 8,115.53-12,167.23-5,475.63

Finding the Fourth Proportional to 8,115.53, 12,167.23 and 5,475.63

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Solution

The fourth proportional to 8,115.53, 12,167.23 and 5,475.63 is: 8,209.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.53 : 12,167.23 = 5,475.63 : x
  2. Step 2: Convert to fraction form
    8,115.53/12,167.23 = 5,475.63/x
  3. Step 3: Cross multiply
    8,115.53x = 12,167.23 × 5,475.63
  4. Step 4: Simplify right side
    8,115.53x = 66,623,249.60
  5. Step 5: Solve for x
    x = 66,623,249.60/8,115.53
  6. Step 6: Final answer
    x = 8,209.36

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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.