Home / 15,192.79-20,967.10-8,479.73

Finding the Fourth Proportional to 15,192.79, 20,967.10 and 8,479.73

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Solution

The fourth proportional to 15,192.79, 20,967.10 and 8,479.73 is: 11,702.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.79 : 20,967.10 = 8,479.73 : x
  2. Step 2: Convert to fraction form
    15,192.79/20,967.10 = 8,479.73/x
  3. Step 3: Cross multiply
    15,192.79x = 20,967.10 × 8,479.73
  4. Step 4: Simplify right side
    15,192.79x = 177,795,278.37
  5. Step 5: Solve for x
    x = 177,795,278.37/15,192.79
  6. Step 6: Final answer
    x = 11,702.61

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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.