Home / 10,129.83-15,190.03-3,108.04

Finding the Fourth Proportional to 10,129.83, 15,190.03 and 3,108.04

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Solution

The fourth proportional to 10,129.83, 15,190.03 and 3,108.04 is: 4,660.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.83 : 15,190.03 = 3,108.04 : x
  2. Step 2: Convert to fraction form
    10,129.83/15,190.03 = 3,108.04/x
  3. Step 3: Cross multiply
    10,129.83x = 15,190.03 × 3,108.04
  4. Step 4: Simplify right side
    10,129.83x = 47,211,220.84
  5. Step 5: Solve for x
    x = 47,211,220.84/10,129.83
  6. Step 6: Final answer
    x = 4,660.61

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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.