Home / 15,855.35-23,781.20-5,324.94

Finding the Fourth Proportional to 15,855.35, 23,781.20 and 5,324.94

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Solution

The fourth proportional to 15,855.35, 23,781.20 and 5,324.94 is: 7,986.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,855.35 : 23,781.20 = 5,324.94 : x
  2. Step 2: Convert to fraction form
    15,855.35/23,781.20 = 5,324.94/x
  3. Step 3: Cross multiply
    15,855.35x = 23,781.20 × 5,324.94
  4. Step 4: Simplify right side
    15,855.35x = 126,633,436.50
  5. Step 5: Solve for x
    x = 126,633,436.50/15,855.35
  6. Step 6: Final answer
    x = 7,986.80

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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.