Home / 10,201.76-15,301.56-4,991.84

Finding the Fourth Proportional to 10,201.76, 15,301.56 and 4,991.84

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Solution

The fourth proportional to 10,201.76, 15,301.56 and 4,991.84 is: 7,487.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,201.76 : 15,301.56 = 4,991.84 : x
  2. Step 2: Convert to fraction form
    10,201.76/15,301.56 = 4,991.84/x
  3. Step 3: Cross multiply
    10,201.76x = 15,301.56 × 4,991.84
  4. Step 4: Simplify right side
    10,201.76x = 76,382,939.27
  5. Step 5: Solve for x
    x = 76,382,939.27/10,201.76
  6. Step 6: Final answer
    x = 7,487.23

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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.