Home / 12,895.70-19,344.56-5,500.21

Finding the Fourth Proportional to 12,895.70, 19,344.56 and 5,500.21

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Solution

The fourth proportional to 12,895.70, 19,344.56 and 5,500.21 is: 8,250.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,895.70 : 19,344.56 = 5,500.21 : x
  2. Step 2: Convert to fraction form
    12,895.70/19,344.56 = 5,500.21/x
  3. Step 3: Cross multiply
    12,895.70x = 19,344.56 × 5,500.21
  4. Step 4: Simplify right side
    12,895.70x = 106,399,142.36
  5. Step 5: Solve for x
    x = 106,399,142.36/12,895.70
  6. Step 6: Final answer
    x = 8,250.75

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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.