Home / 15,747.57-21,752.42-11,761.77

Finding the Fourth Proportional to 15,747.57, 21,752.42 and 11,761.77

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Solution

The fourth proportional to 15,747.57, 21,752.42 and 11,761.77 is: 16,246.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,747.57 : 21,752.42 = 11,761.77 : x
  2. Step 2: Convert to fraction form
    15,747.57/21,752.42 = 11,761.77/x
  3. Step 3: Cross multiply
    15,747.57x = 21,752.42 × 11,761.77
  4. Step 4: Simplify right side
    15,747.57x = 255,846,902.17
  5. Step 5: Solve for x
    x = 255,846,902.17/15,747.57
  6. Step 6: Final answer
    x = 16,246.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.