Home / 10,405.53-15,610.61-4,855.85

Finding the Fourth Proportional to 10,405.53, 15,610.61 and 4,855.85

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Solution

The fourth proportional to 10,405.53, 15,610.61 and 4,855.85 is: 7,284.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,405.53 : 15,610.61 = 4,855.85 : x
  2. Step 2: Convert to fraction form
    10,405.53/15,610.61 = 4,855.85/x
  3. Step 3: Cross multiply
    10,405.53x = 15,610.61 × 4,855.85
  4. Step 4: Simplify right side
    10,405.53x = 75,802,780.57
  5. Step 5: Solve for x
    x = 75,802,780.57/10,405.53
  6. Step 6: Final answer
    x = 7,284.86

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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.