Home / 19,761.35-27,277.61-12,213.47

Finding the Fourth Proportional to 19,761.35, 27,277.61 and 12,213.47

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Solution

The fourth proportional to 19,761.35, 27,277.61 and 12,213.47 is: 16,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,761.35 : 27,277.61 = 12,213.47 : x
  2. Step 2: Convert to fraction form
    19,761.35/27,277.61 = 12,213.47/x
  3. Step 3: Cross multiply
    19,761.35x = 27,277.61 × 12,213.47
  4. Step 4: Simplify right side
    19,761.35x = 333,154,073.95
  5. Step 5: Solve for x
    x = 333,154,073.95/19,761.35
  6. Step 6: Final answer
    x = 16,858.88

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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.