Home / 15,191.44-20,959.26-8,476

Finding the Fourth Proportional to 15,191.44, 20,959.26 and 8,476

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Solution

The fourth proportional to 15,191.44, 20,959.26 and 8,476 is: 11,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,191.44 : 20,959.26 = 8,476 : x
  2. Step 2: Convert to fraction form
    15,191.44/20,959.26 = 8,476/x
  3. Step 3: Cross multiply
    15,191.44x = 20,959.26 × 8,476
  4. Step 4: Simplify right side
    15,191.44x = 177,650,687.76
  5. Step 5: Solve for x
    x = 177,650,687.76/15,191.44
  6. Step 6: Final answer
    x = 11,694.13

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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.