Home / 10,480.76-15,716.53-5,549.25

Finding the Fourth Proportional to 10,480.76, 15,716.53 and 5,549.25

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Solution

The fourth proportional to 10,480.76, 15,716.53 and 5,549.25 is: 8,321.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,480.76 : 15,716.53 = 5,549.25 : x
  2. Step 2: Convert to fraction form
    10,480.76/15,716.53 = 5,549.25/x
  3. Step 3: Cross multiply
    10,480.76x = 15,716.53 × 5,549.25
  4. Step 4: Simplify right side
    10,480.76x = 87,214,954.10
  5. Step 5: Solve for x
    x = 87,214,954.10/10,480.76
  6. Step 6: Final answer
    x = 8,321.43

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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.