Home / 15,913.31-21,959.48-8,839.27

Finding the Fourth Proportional to 15,913.31, 21,959.48 and 8,839.27

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Solution

The fourth proportional to 15,913.31, 21,959.48 and 8,839.27 is: 12,197.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.31 : 21,959.48 = 8,839.27 : x
  2. Step 2: Convert to fraction form
    15,913.31/21,959.48 = 8,839.27/x
  3. Step 3: Cross multiply
    15,913.31x = 21,959.48 × 8,839.27
  4. Step 4: Simplify right side
    15,913.31x = 194,105,822.33
  5. Step 5: Solve for x
    x = 194,105,822.33/15,913.31
  6. Step 6: Final answer
    x = 12,197.71

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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.