Home / 10,013.65-15,020.82-3,439.79

Finding the Fourth Proportional to 10,013.65, 15,020.82 and 3,439.79

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Solution

The fourth proportional to 10,013.65, 15,020.82 and 3,439.79 is: 5,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,013.65 : 15,020.82 = 3,439.79 : x
  2. Step 2: Convert to fraction form
    10,013.65/15,020.82 = 3,439.79/x
  3. Step 3: Cross multiply
    10,013.65x = 15,020.82 × 3,439.79
  4. Step 4: Simplify right side
    10,013.65x = 51,668,391.32
  5. Step 5: Solve for x
    x = 51,668,391.32/10,013.65
  6. Step 6: Final answer
    x = 5,159.80

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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.