Home / 15,691.08-23,506.94-12,163.80

Finding the Fourth Proportional to 15,691.08, 23,506.94 and 12,163.80

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Solution

The fourth proportional to 15,691.08, 23,506.94 and 12,163.80 is: 18,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,691.08 : 23,506.94 = 12,163.80 : x
  2. Step 2: Convert to fraction form
    15,691.08/23,506.94 = 12,163.80/x
  3. Step 3: Cross multiply
    15,691.08x = 23,506.94 × 12,163.80
  4. Step 4: Simplify right side
    15,691.08x = 285,933,721.60
  5. Step 5: Solve for x
    x = 285,933,721.60/15,691.08
  6. Step 6: Final answer
    x = 18,222.69

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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.