Home / 13,974.71-20,959.78-4,111.68

Finding the Fourth Proportional to 13,974.71, 20,959.78 and 4,111.68

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Solution

The fourth proportional to 13,974.71, 20,959.78 and 4,111.68 is: 6,166.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,974.71 : 20,959.78 = 4,111.68 : x
  2. Step 2: Convert to fraction form
    13,974.71/20,959.78 = 4,111.68/x
  3. Step 3: Cross multiply
    13,974.71x = 20,959.78 × 4,111.68
  4. Step 4: Simplify right side
    13,974.71x = 86,179,897.95
  5. Step 5: Solve for x
    x = 86,179,897.95/13,974.71
  6. Step 6: Final answer
    x = 6,166.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.