Home / 11,320.28-16,983.48-4,743

Finding the Fourth Proportional to 11,320.28, 16,983.48 and 4,743

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Solution

The fourth proportional to 11,320.28, 16,983.48 and 4,743 is: 7,115.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,320.28 : 16,983.48 = 4,743 : x
  2. Step 2: Convert to fraction form
    11,320.28/16,983.48 = 4,743/x
  3. Step 3: Cross multiply
    11,320.28x = 16,983.48 × 4,743
  4. Step 4: Simplify right side
    11,320.28x = 80,552,645.64
  5. Step 5: Solve for x
    x = 80,552,645.64/11,320.28
  6. Step 6: Final answer
    x = 7,115.78

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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.