Home / 8,115.39-12,174.29-2,567.48

Finding the Fourth Proportional to 8,115.39, 12,174.29 and 2,567.48

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Solution

The fourth proportional to 8,115.39, 12,174.29 and 2,567.48 is: 3,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.39 : 12,174.29 = 2,567.48 : x
  2. Step 2: Convert to fraction form
    8,115.39/12,174.29 = 2,567.48/x
  3. Step 3: Cross multiply
    8,115.39x = 12,174.29 × 2,567.48
  4. Step 4: Simplify right side
    8,115.39x = 31,257,172.38
  5. Step 5: Solve for x
    x = 31,257,172.38/8,115.39
  6. Step 6: Final answer
    x = 3,851.59

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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.