Home / 15,905.92-23,866.80-7,144

Finding the Fourth Proportional to 15,905.92, 23,866.80 and 7,144

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Solution

The fourth proportional to 15,905.92, 23,866.80 and 7,144 is: 10,719.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,905.92 : 23,866.80 = 7,144 : x
  2. Step 2: Convert to fraction form
    15,905.92/23,866.80 = 7,144/x
  3. Step 3: Cross multiply
    15,905.92x = 23,866.80 × 7,144
  4. Step 4: Simplify right side
    15,905.92x = 170,504,419.20
  5. Step 5: Solve for x
    x = 170,504,419.20/15,905.92
  6. Step 6: Final answer
    x = 10,719.56

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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.