Home / 10,408.85-15,603.80-3,830.45

Finding the Fourth Proportional to 10,408.85, 15,603.80 and 3,830.45

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Solution

The fourth proportional to 10,408.85, 15,603.80 and 3,830.45 is: 5,742.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,408.85 : 15,603.80 = 3,830.45 : x
  2. Step 2: Convert to fraction form
    10,408.85/15,603.80 = 3,830.45/x
  3. Step 3: Cross multiply
    10,408.85x = 15,603.80 × 3,830.45
  4. Step 4: Simplify right side
    10,408.85x = 59,769,556.56
  5. Step 5: Solve for x
    x = 59,769,556.56/10,408.85
  6. Step 6: Final answer
    x = 5,742.19

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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.