Home / 15,744.92-21,725.19-12,755.61

Finding the Fourth Proportional to 15,744.92, 21,725.19 and 12,755.61

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Solution

The fourth proportional to 15,744.92, 21,725.19 and 12,755.61 is: 17,600.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.92 : 21,725.19 = 12,755.61 : x
  2. Step 2: Convert to fraction form
    15,744.92/21,725.19 = 12,755.61/x
  3. Step 3: Cross multiply
    15,744.92x = 21,725.19 × 12,755.61
  4. Step 4: Simplify right side
    15,744.92x = 277,118,050.82
  5. Step 5: Solve for x
    x = 277,118,050.82/15,744.92
  6. Step 6: Final answer
    x = 17,600.48

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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.