Home / 10,486.90-15,716.37-3,906.46

Finding the Fourth Proportional to 10,486.90, 15,716.37 and 3,906.46

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Solution

The fourth proportional to 10,486.90, 15,716.37 and 3,906.46 is: 5,854.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,486.90 : 15,716.37 = 3,906.46 : x
  2. Step 2: Convert to fraction form
    10,486.90/15,716.37 = 3,906.46/x
  3. Step 3: Cross multiply
    10,486.90x = 15,716.37 × 3,906.46
  4. Step 4: Simplify right side
    10,486.90x = 61,395,370.75
  5. Step 5: Solve for x
    x = 61,395,370.75/10,486.90
  6. Step 6: Final answer
    x = 5,854.48

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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.