Home / 12,809.12-19,213.20-4,044.56

Finding the Fourth Proportional to 12,809.12, 19,213.20 and 4,044.56

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Solution

The fourth proportional to 12,809.12, 19,213.20 and 4,044.56 is: 6,066.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,809.12 : 19,213.20 = 4,044.56 : x
  2. Step 2: Convert to fraction form
    12,809.12/19,213.20 = 4,044.56/x
  3. Step 3: Cross multiply
    12,809.12x = 19,213.20 × 4,044.56
  4. Step 4: Simplify right side
    12,809.12x = 77,708,940.19
  5. Step 5: Solve for x
    x = 77,708,940.19/12,809.12
  6. Step 6: Final answer
    x = 6,066.69

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.