Home / 10,871.77-16,307.66-5,676.43

Finding the Fourth Proportional to 10,871.77, 16,307.66 and 5,676.43

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Solution

The fourth proportional to 10,871.77, 16,307.66 and 5,676.43 is: 8,514.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,871.77 : 16,307.66 = 5,676.43 : x
  2. Step 2: Convert to fraction form
    10,871.77/16,307.66 = 5,676.43/x
  3. Step 3: Cross multiply
    10,871.77x = 16,307.66 × 5,676.43
  4. Step 4: Simplify right side
    10,871.77x = 92,569,290.45
  5. Step 5: Solve for x
    x = 92,569,290.45/10,871.77
  6. Step 6: Final answer
    x = 8,514.65

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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.