Home / 7,335.36-11,003.28-3,172.47

Finding the Fourth Proportional to 7,335.36, 11,003.28 and 3,172.47

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Solution

The fourth proportional to 7,335.36, 11,003.28 and 3,172.47 is: 4,758.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,335.36 : 11,003.28 = 3,172.47 : x
  2. Step 2: Convert to fraction form
    7,335.36/11,003.28 = 3,172.47/x
  3. Step 3: Cross multiply
    7,335.36x = 11,003.28 × 3,172.47
  4. Step 4: Simplify right side
    7,335.36x = 34,907,575.70
  5. Step 5: Solve for x
    x = 34,907,575.70/7,335.36
  6. Step 6: Final answer
    x = 4,758.81

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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.