Home / 13,324.59-19,990.43-3,964.70

Finding the Fourth Proportional to 13,324.59, 19,990.43 and 3,964.70

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Solution

The fourth proportional to 13,324.59, 19,990.43 and 3,964.70 is: 5,948.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,324.59 : 19,990.43 = 3,964.70 : x
  2. Step 2: Convert to fraction form
    13,324.59/19,990.43 = 3,964.70/x
  3. Step 3: Cross multiply
    13,324.59x = 19,990.43 × 3,964.70
  4. Step 4: Simplify right side
    13,324.59x = 79,255,938.05
  5. Step 5: Solve for x
    x = 79,255,938.05/13,324.59
  6. Step 6: Final answer
    x = 5,948.10

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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.