Home / 10,139.22-15,205.71-3,563.85

Finding the Fourth Proportional to 10,139.22, 15,205.71 and 3,563.85

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Solution

The fourth proportional to 10,139.22, 15,205.71 and 3,563.85 is: 5,344.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.22 : 15,205.71 = 3,563.85 : x
  2. Step 2: Convert to fraction form
    10,139.22/15,205.71 = 3,563.85/x
  3. Step 3: Cross multiply
    10,139.22x = 15,205.71 × 3,563.85
  4. Step 4: Simplify right side
    10,139.22x = 54,190,869.58
  5. Step 5: Solve for x
    x = 54,190,869.58/10,139.22
  6. Step 6: Final answer
    x = 5,344.68

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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.