Home / 14,649.47-20,212.76-8,680.10

Finding the Fourth Proportional to 14,649.47, 20,212.76 and 8,680.10

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Solution

The fourth proportional to 14,649.47, 20,212.76 and 8,680.10 is: 11,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,649.47 : 20,212.76 = 8,680.10 : x
  2. Step 2: Convert to fraction form
    14,649.47/20,212.76 = 8,680.10/x
  3. Step 3: Cross multiply
    14,649.47x = 20,212.76 × 8,680.10
  4. Step 4: Simplify right side
    14,649.47x = 175,448,850.31
  5. Step 5: Solve for x
    x = 175,448,850.31/14,649.47
  6. Step 6: Final answer
    x = 11,976.47

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Half scale
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Double scale
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Similar ratio
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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.