Home / 19,669.33-27,139.62-12,112.84

Finding the Fourth Proportional to 19,669.33, 27,139.62 and 12,112.84

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Solution

The fourth proportional to 19,669.33, 27,139.62 and 12,112.84 is: 16,713.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.33 : 27,139.62 = 12,112.84 : x
  2. Step 2: Convert to fraction form
    19,669.33/27,139.62 = 12,112.84/x
  3. Step 3: Cross multiply
    19,669.33x = 27,139.62 × 12,112.84
  4. Step 4: Simplify right side
    19,669.33x = 328,737,874.72
  5. Step 5: Solve for x
    x = 328,737,874.72/19,669.33
  6. Step 6: Final answer
    x = 16,713.22

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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.