Home / 15,939.87-23,918.04-7,172.97

Finding the Fourth Proportional to 15,939.87, 23,918.04 and 7,172.97

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Solution

The fourth proportional to 15,939.87, 23,918.04 and 7,172.97 is: 10,763.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,939.87 : 23,918.04 = 7,172.97 : x
  2. Step 2: Convert to fraction form
    15,939.87/23,918.04 = 7,172.97/x
  3. Step 3: Cross multiply
    15,939.87x = 23,918.04 × 7,172.97
  4. Step 4: Simplify right side
    15,939.87x = 171,563,383.38
  5. Step 5: Solve for x
    x = 171,563,383.38/15,939.87
  6. Step 6: Final answer
    x = 10,763.16

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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.