Home / 10,965.12-16,453.08-5,122.14

Finding the Fourth Proportional to 10,965.12, 16,453.08 and 5,122.14

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Solution

The fourth proportional to 10,965.12, 16,453.08 and 5,122.14 is: 7,685.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,965.12 : 16,453.08 = 5,122.14 : x
  2. Step 2: Convert to fraction form
    10,965.12/16,453.08 = 5,122.14/x
  3. Step 3: Cross multiply
    10,965.12x = 16,453.08 × 5,122.14
  4. Step 4: Simplify right side
    10,965.12x = 84,274,979.19
  5. Step 5: Solve for x
    x = 84,274,979.19/10,965.12
  6. Step 6: Final answer
    x = 7,685.73

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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.