Home / 15,042.22-20,758.38-8,327.95

Finding the Fourth Proportional to 15,042.22, 20,758.38 and 8,327.95

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Solution

The fourth proportional to 15,042.22, 20,758.38 and 8,327.95 is: 11,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,042.22 : 20,758.38 = 8,327.95 : x
  2. Step 2: Convert to fraction form
    15,042.22/20,758.38 = 8,327.95/x
  3. Step 3: Cross multiply
    15,042.22x = 20,758.38 × 8,327.95
  4. Step 4: Simplify right side
    15,042.22x = 172,874,709.08
  5. Step 5: Solve for x
    x = 172,874,709.08/15,042.22
  6. Step 6: Final answer
    x = 11,492.64

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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.