Home / 19,744.77-27,245.13-12,680.76

Finding the Fourth Proportional to 19,744.77, 27,245.13 and 12,680.76

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Solution

The fourth proportional to 19,744.77, 27,245.13 and 12,680.76 is: 17,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,744.77 : 27,245.13 = 12,680.76 : x
  2. Step 2: Convert to fraction form
    19,744.77/27,245.13 = 12,680.76/x
  3. Step 3: Cross multiply
    19,744.77x = 27,245.13 × 12,680.76
  4. Step 4: Simplify right side
    19,744.77x = 345,488,954.70
  5. Step 5: Solve for x
    x = 345,488,954.70/19,744.77
  6. Step 6: Final answer
    x = 17,497.75

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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.