Home / 10,712.63-16,079.33-5,169.87

Finding the Fourth Proportional to 10,712.63, 16,079.33 and 5,169.87

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Solution

The fourth proportional to 10,712.63, 16,079.33 and 5,169.87 is: 7,759.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.63 : 16,079.33 = 5,169.87 : x
  2. Step 2: Convert to fraction form
    10,712.63/16,079.33 = 5,169.87/x
  3. Step 3: Cross multiply
    10,712.63x = 16,079.33 × 5,169.87
  4. Step 4: Simplify right side
    10,712.63x = 83,128,019.94
  5. Step 5: Solve for x
    x = 83,128,019.94/10,712.63
  6. Step 6: Final answer
    x = 7,759.82

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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.