Home / 11,916.39-17,874.77-5,677.05

Finding the Fourth Proportional to 11,916.39, 17,874.77 and 5,677.05

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Solution

The fourth proportional to 11,916.39, 17,874.77 and 5,677.05 is: 8,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,916.39 : 17,874.77 = 5,677.05 : x
  2. Step 2: Convert to fraction form
    11,916.39/17,874.77 = 5,677.05/x
  3. Step 3: Cross multiply
    11,916.39x = 17,874.77 × 5,677.05
  4. Step 4: Simplify right side
    11,916.39x = 101,475,934.64
  5. Step 5: Solve for x
    x = 101,475,934.64/11,916.39
  6. Step 6: Final answer
    x = 8,515.66

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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.