Home / 15,158.22-20,920.00-8,352.95

Finding the Fourth Proportional to 15,158.22, 20,920.00 and 8,352.95

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Solution

The fourth proportional to 15,158.22, 20,920.00 and 8,352.95 is: 11,527.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.22 : 20,920.00 = 8,352.95 : x
  2. Step 2: Convert to fraction form
    15,158.22/20,920.00 = 8,352.95/x
  3. Step 3: Cross multiply
    15,158.22x = 20,920.00 × 8,352.95
  4. Step 4: Simplify right side
    15,158.22x = 174,743,627.74
  5. Step 5: Solve for x
    x = 174,743,627.74/15,158.22
  6. Step 6: Final answer
    x = 11,527.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.