Home / 10,571.11-15,845.57-5,017.80

Finding the Fourth Proportional to 10,571.11, 15,845.57 and 5,017.80

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Solution

The fourth proportional to 10,571.11, 15,845.57 and 5,017.80 is: 7,521.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,571.11 : 15,845.57 = 5,017.80 : x
  2. Step 2: Convert to fraction form
    10,571.11/15,845.57 = 5,017.80/x
  3. Step 3: Cross multiply
    10,571.11x = 15,845.57 × 5,017.80
  4. Step 4: Simplify right side
    10,571.11x = 79,509,893.39
  5. Step 5: Solve for x
    x = 79,509,893.39/10,571.11
  6. Step 6: Final answer
    x = 7,521.43

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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.