Home / 12,982.57-19,449.24-7,706.43

Finding the Fourth Proportional to 12,982.57, 19,449.24 and 7,706.43

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Solution

The fourth proportional to 12,982.57, 19,449.24 and 7,706.43 is: 11,545.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.57 : 19,449.24 = 7,706.43 : x
  2. Step 2: Convert to fraction form
    12,982.57/19,449.24 = 7,706.43/x
  3. Step 3: Cross multiply
    12,982.57x = 19,449.24 × 7,706.43
  4. Step 4: Simplify right side
    12,982.57x = 149,884,206.61
  5. Step 5: Solve for x
    x = 149,884,206.61/12,982.57
  6. Step 6: Final answer
    x = 11,545.03

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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.