Home / 12,079.62-18,147.09-7,152.66

Finding the Fourth Proportional to 12,079.62, 18,147.09 and 7,152.66

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Solution

The fourth proportional to 12,079.62, 18,147.09 and 7,152.66 is: 10,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.62 : 18,147.09 = 7,152.66 : x
  2. Step 2: Convert to fraction form
    12,079.62/18,147.09 = 7,152.66/x
  3. Step 3: Cross multiply
    12,079.62x = 18,147.09 × 7,152.66
  4. Step 4: Simplify right side
    12,079.62x = 129,799,964.76
  5. Step 5: Solve for x
    x = 129,799,964.76/12,079.62
  6. Step 6: Final answer
    x = 10,745.37

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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.