Home / 10,245.72-15,355.80-4,395.54

Finding the Fourth Proportional to 10,245.72, 15,355.80 and 4,395.54

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Solution

The fourth proportional to 10,245.72, 15,355.80 and 4,395.54 is: 6,587.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.72 : 15,355.80 = 4,395.54 : x
  2. Step 2: Convert to fraction form
    10,245.72/15,355.80 = 4,395.54/x
  3. Step 3: Cross multiply
    10,245.72x = 15,355.80 × 4,395.54
  4. Step 4: Simplify right side
    10,245.72x = 67,497,033.13
  5. Step 5: Solve for x
    x = 67,497,033.13/10,245.72
  6. Step 6: Final answer
    x = 6,587.83

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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.