Home / 15,839.06-21,838.03-10,163.79

Finding the Fourth Proportional to 15,839.06, 21,838.03 and 10,163.79

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Solution

The fourth proportional to 15,839.06, 21,838.03 and 10,163.79 is: 14,013.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.06 : 21,838.03 = 10,163.79 : x
  2. Step 2: Convert to fraction form
    15,839.06/21,838.03 = 10,163.79/x
  3. Step 3: Cross multiply
    15,839.06x = 21,838.03 × 10,163.79
  4. Step 4: Simplify right side
    15,839.06x = 221,957,125.52
  5. Step 5: Solve for x
    x = 221,957,125.52/15,839.06
  6. Step 6: Final answer
    x = 14,013.28

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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.