Home / 10,001.91-15,003.60-3,428.04

Finding the Fourth Proportional to 10,001.91, 15,003.60 and 3,428.04

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Solution

The fourth proportional to 10,001.91, 15,003.60 and 3,428.04 is: 5,142.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.91 : 15,003.60 = 3,428.04 : x
  2. Step 2: Convert to fraction form
    10,001.91/15,003.60 = 3,428.04/x
  3. Step 3: Cross multiply
    10,001.91x = 15,003.60 × 3,428.04
  4. Step 4: Simplify right side
    10,001.91x = 51,432,940.94
  5. Step 5: Solve for x
    x = 51,432,940.94/10,001.91
  6. Step 6: Final answer
    x = 5,142.31

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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.