Home / 10,385.44-15,582.68-5,453.88

Finding the Fourth Proportional to 10,385.44, 15,582.68 and 5,453.88

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Solution

The fourth proportional to 10,385.44, 15,582.68 and 5,453.88 is: 8,183.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.44 : 15,582.68 = 5,453.88 : x
  2. Step 2: Convert to fraction form
    10,385.44/15,582.68 = 5,453.88/x
  3. Step 3: Cross multiply
    10,385.44x = 15,582.68 × 5,453.88
  4. Step 4: Simplify right side
    10,385.44x = 84,986,066.80
  5. Step 5: Solve for x
    x = 84,986,066.80/10,385.44
  6. Step 6: Final answer
    x = 8,183.19

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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.