Home / 15,960.29-22,010.81-9,992.48

Finding the Fourth Proportional to 15,960.29, 22,010.81 and 9,992.48

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Solution

The fourth proportional to 15,960.29, 22,010.81 and 9,992.48 is: 13,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,960.29 : 22,010.81 = 9,992.48 : x
  2. Step 2: Convert to fraction form
    15,960.29/22,010.81 = 9,992.48/x
  3. Step 3: Cross multiply
    15,960.29x = 22,010.81 × 9,992.48
  4. Step 4: Simplify right side
    15,960.29x = 219,942,418.69
  5. Step 5: Solve for x
    x = 219,942,418.69/15,960.29
  6. Step 6: Final answer
    x = 13,780.61

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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.