Home / 12,744.66-19,116.49-4,426.57

Finding the Fourth Proportional to 12,744.66, 19,116.49 and 4,426.57

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Solution

The fourth proportional to 12,744.66, 19,116.49 and 4,426.57 is: 6,639.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,744.66 : 19,116.49 = 4,426.57 : x
  2. Step 2: Convert to fraction form
    12,744.66/19,116.49 = 4,426.57/x
  3. Step 3: Cross multiply
    12,744.66x = 19,116.49 × 4,426.57
  4. Step 4: Simplify right side
    12,744.66x = 84,620,481.14
  5. Step 5: Solve for x
    x = 84,620,481.14/12,744.66
  6. Step 6: Final answer
    x = 6,639.68

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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.