Home / 7,456.40-11,222.48-5,616.80

Finding the Fourth Proportional to 7,456.40, 11,222.48 and 5,616.80

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Solution

The fourth proportional to 7,456.40, 11,222.48 and 5,616.80 is: 8,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,456.40 : 11,222.48 = 5,616.80 : x
  2. Step 2: Convert to fraction form
    7,456.40/11,222.48 = 5,616.80/x
  3. Step 3: Cross multiply
    7,456.40x = 11,222.48 × 5,616.80
  4. Step 4: Simplify right side
    7,456.40x = 63,034,425.66
  5. Step 5: Solve for x
    x = 63,034,425.66/7,456.40
  6. Step 6: Final answer
    x = 8,453.73

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.