Home / 10,093.18-15,120.69-5,713.78

Finding the Fourth Proportional to 10,093.18, 15,120.69 and 5,713.78

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Solution

The fourth proportional to 10,093.18, 15,120.69 and 5,713.78 is: 8,559.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,093.18 : 15,120.69 = 5,713.78 : x
  2. Step 2: Convert to fraction form
    10,093.18/15,120.69 = 5,713.78/x
  3. Step 3: Cross multiply
    10,093.18x = 15,120.69 × 5,713.78
  4. Step 4: Simplify right side
    10,093.18x = 86,396,296.11
  5. Step 5: Solve for x
    x = 86,396,296.11/10,093.18
  6. Step 6: Final answer
    x = 8,559.87

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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.