Home / 10,288.53-15,388.85-8,589.60

Finding the Fourth Proportional to 10,288.53, 15,388.85 and 8,589.60

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Solution

The fourth proportional to 10,288.53, 15,388.85 and 8,589.60 is: 12,847.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,288.53 : 15,388.85 = 8,589.60 : x
  2. Step 2: Convert to fraction form
    10,288.53/15,388.85 = 8,589.60/x
  3. Step 3: Cross multiply
    10,288.53x = 15,388.85 × 8,589.60
  4. Step 4: Simplify right side
    10,288.53x = 132,184,023.01
  5. Step 5: Solve for x
    x = 132,184,023.01/10,288.53
  6. Step 6: Final answer
    x = 12,847.71

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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.