Home / 10,408.20-15,608.77-3,386.48

Finding the Fourth Proportional to 10,408.20, 15,608.77 and 3,386.48

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Solution

The fourth proportional to 10,408.20, 15,608.77 and 3,386.48 is: 5,078.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.20 : 15,608.77 = 3,386.48 : x
  2. Step 2: Convert to fraction form
    10,408.20/15,608.77 = 3,386.48/x
  3. Step 3: Cross multiply
    10,408.20x = 15,608.77 × 3,386.48
  4. Step 4: Simplify right side
    10,408.20x = 52,858,748.41
  5. Step 5: Solve for x
    x = 52,858,748.41/10,408.20
  6. Step 6: Final answer
    x = 5,078.57

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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.