Home / 15,963.47-23,940.10-5,287.87

Finding the Fourth Proportional to 15,963.47, 23,940.10 and 5,287.87

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Solution

The fourth proportional to 15,963.47, 23,940.10 and 5,287.87 is: 7,930.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,963.47 : 23,940.10 = 5,287.87 : x
  2. Step 2: Convert to fraction form
    15,963.47/23,940.10 = 5,287.87/x
  3. Step 3: Cross multiply
    15,963.47x = 23,940.10 × 5,287.87
  4. Step 4: Simplify right side
    15,963.47x = 126,592,136.59
  5. Step 5: Solve for x
    x = 126,592,136.59/15,963.47
  6. Step 6: Final answer
    x = 7,930.11

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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.