Home / 14,649.97-20,213.45-8,680.61

Finding the Fourth Proportional to 14,649.97, 20,213.45 and 8,680.61

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Solution

The fourth proportional to 14,649.97, 20,213.45 and 8,680.61 is: 11,977.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.97 : 20,213.45 = 8,680.61 : x
  2. Step 2: Convert to fraction form
    14,649.97/20,213.45 = 8,680.61/x
  3. Step 3: Cross multiply
    14,649.97x = 20,213.45 × 8,680.61
  4. Step 4: Simplify right side
    14,649.97x = 175,464,975.14
  5. Step 5: Solve for x
    x = 175,464,975.14/14,649.97
  6. Step 6: Final answer
    x = 11,977.16

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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.