Home / 10,100.90-15,149.91-3,174.50

Finding the Fourth Proportional to 10,100.90, 15,149.91 and 3,174.50

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Solution

The fourth proportional to 10,100.90, 15,149.91 and 3,174.50 is: 4,761.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,100.90 : 15,149.91 = 3,174.50 : x
  2. Step 2: Convert to fraction form
    10,100.90/15,149.91 = 3,174.50/x
  3. Step 3: Cross multiply
    10,100.90x = 15,149.91 × 3,174.50
  4. Step 4: Simplify right side
    10,100.90x = 48,093,389.30
  5. Step 5: Solve for x
    x = 48,093,389.30/10,100.90
  6. Step 6: Final answer
    x = 4,761.30

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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.