Home / 15,194.17-20,967.91-8,479.72

Finding the Fourth Proportional to 15,194.17, 20,967.91 and 8,479.72

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Solution

The fourth proportional to 15,194.17, 20,967.91 and 8,479.72 is: 11,701.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,194.17 : 20,967.91 = 8,479.72 : x
  2. Step 2: Convert to fraction form
    15,194.17/20,967.91 = 8,479.72/x
  3. Step 3: Cross multiply
    15,194.17x = 20,967.91 × 8,479.72
  4. Step 4: Simplify right side
    15,194.17x = 177,801,932.17
  5. Step 5: Solve for x
    x = 177,801,932.17/15,194.17
  6. Step 6: Final answer
    x = 11,701.99

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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.