Home / 15,987.85-23,988.68-8,583.66

Finding the Fourth Proportional to 15,987.85, 23,988.68 and 8,583.66

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Solution

The fourth proportional to 15,987.85, 23,988.68 and 8,583.66 is: 12,879.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987.85 : 23,988.68 = 8,583.66 : x
  2. Step 2: Convert to fraction form
    15,987.85/23,988.68 = 8,583.66/x
  3. Step 3: Cross multiply
    15,987.85x = 23,988.68 × 8,583.66
  4. Step 4: Simplify right side
    15,987.85x = 205,910,672.97
  5. Step 5: Solve for x
    x = 205,910,672.97/15,987.85
  6. Step 6: Final answer
    x = 12,879.20

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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.