Home / 10,917.36-16,375.68-3,521.76

Finding the Fourth Proportional to 10,917.36, 16,375.68 and 3,521.76

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Solution

The fourth proportional to 10,917.36, 16,375.68 and 3,521.76 is: 5,282.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.36 : 16,375.68 = 3,521.76 : x
  2. Step 2: Convert to fraction form
    10,917.36/16,375.68 = 3,521.76/x
  3. Step 3: Cross multiply
    10,917.36x = 16,375.68 × 3,521.76
  4. Step 4: Simplify right side
    10,917.36x = 57,671,214.80
  5. Step 5: Solve for x
    x = 57,671,214.80/10,917.36
  6. Step 6: Final answer
    x = 5,282.52

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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.