Home / 10,190.80-15,289.44-3,621.16

Finding the Fourth Proportional to 10,190.80, 15,289.44 and 3,621.16

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Solution

The fourth proportional to 10,190.80, 15,289.44 and 3,621.16 is: 5,432.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.80 : 15,289.44 = 3,621.16 : x
  2. Step 2: Convert to fraction form
    10,190.80/15,289.44 = 3,621.16/x
  3. Step 3: Cross multiply
    10,190.80x = 15,289.44 × 3,621.16
  4. Step 4: Simplify right side
    10,190.80x = 55,365,508.55
  5. Step 5: Solve for x
    x = 55,365,508.55/10,190.80
  6. Step 6: Final answer
    x = 5,432.89

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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.