Home / 14,841.20-20,481.34-8,127.12

Finding the Fourth Proportional to 14,841.20, 20,481.34 and 8,127.12

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Solution

The fourth proportional to 14,841.20, 20,481.34 and 8,127.12 is: 11,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,841.20 : 20,481.34 = 8,127.12 : x
  2. Step 2: Convert to fraction form
    14,841.20/20,481.34 = 8,127.12/x
  3. Step 3: Cross multiply
    14,841.20x = 20,481.34 × 8,127.12
  4. Step 4: Simplify right side
    14,841.20x = 166,454,307.94
  5. Step 5: Solve for x
    x = 166,454,307.94/14,841.20
  6. Step 6: Final answer
    x = 11,215.69

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Half scale
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Double scale
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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.