Home / 11,135.76-15,353.19-7,952.87

Finding the Fourth Proportional to 11,135.76, 15,353.19 and 7,952.87

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Solution

The fourth proportional to 11,135.76, 15,353.19 and 7,952.87 is: 10,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,135.76 : 15,353.19 = 7,952.87 : x
  2. Step 2: Convert to fraction form
    11,135.76/15,353.19 = 7,952.87/x
  3. Step 3: Cross multiply
    11,135.76x = 15,353.19 × 7,952.87
  4. Step 4: Simplify right side
    11,135.76x = 122,101,924.16
  5. Step 5: Solve for x
    x = 122,101,924.16/11,135.76
  6. Step 6: Final answer
    x = 10,964.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.