Home / 19,761.66-27,273.57-12,961.39

Finding the Fourth Proportional to 19,761.66, 27,273.57 and 12,961.39

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Solution

The fourth proportional to 19,761.66, 27,273.57 and 12,961.39 is: 17,888.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.66 : 27,273.57 = 12,961.39 : x
  2. Step 2: Convert to fraction form
    19,761.66/27,273.57 = 12,961.39/x
  3. Step 3: Cross multiply
    19,761.66x = 27,273.57 × 12,961.39
  4. Step 4: Simplify right side
    19,761.66x = 353,503,377.46
  5. Step 5: Solve for x
    x = 353,503,377.46/19,761.66
  6. Step 6: Final answer
    x = 17,888.34

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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.