Home / 15,819.41-23,722.23-8,422.22

Finding the Fourth Proportional to 15,819.41, 23,722.23 and 8,422.22

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Solution

The fourth proportional to 15,819.41, 23,722.23 and 8,422.22 is: 12,629.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,819.41 : 23,722.23 = 8,422.22 : x
  2. Step 2: Convert to fraction form
    15,819.41/23,722.23 = 8,422.22/x
  3. Step 3: Cross multiply
    15,819.41x = 23,722.23 × 8,422.22
  4. Step 4: Simplify right side
    15,819.41x = 199,793,839.95
  5. Step 5: Solve for x
    x = 199,793,839.95/15,819.41
  6. Step 6: Final answer
    x = 12,629.66

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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.