Home / 10,921.56-16,370.66-5,651.26

Finding the Fourth Proportional to 10,921.56, 16,370.66 and 5,651.26

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Solution

The fourth proportional to 10,921.56, 16,370.66 and 5,651.26 is: 8,470.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,921.56 : 16,370.66 = 5,651.26 : x
  2. Step 2: Convert to fraction form
    10,921.56/16,370.66 = 5,651.26/x
  3. Step 3: Cross multiply
    10,921.56x = 16,370.66 × 5,651.26
  4. Step 4: Simplify right side
    10,921.56x = 92,514,856.03
  5. Step 5: Solve for x
    x = 92,514,856.03/10,921.56
  6. Step 6: Final answer
    x = 8,470.85

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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.