Home / 13,329.90-19,982.05-10,366.70

Finding the Fourth Proportional to 13,329.90, 19,982.05 and 10,366.70

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Solution

The fourth proportional to 13,329.90, 19,982.05 and 10,366.70 is: 15,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.90 : 19,982.05 = 10,366.70 : x
  2. Step 2: Convert to fraction form
    13,329.90/19,982.05 = 10,366.70/x
  3. Step 3: Cross multiply
    13,329.90x = 19,982.05 × 10,366.70
  4. Step 4: Simplify right side
    13,329.90x = 207,147,917.74
  5. Step 5: Solve for x
    x = 207,147,917.74/13,329.90
  6. Step 6: Final answer
    x = 15,540.10

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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.