Home / 19,707.60-27,198.84-11,211.11

Finding the Fourth Proportional to 19,707.60, 27,198.84 and 11,211.11

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Solution

The fourth proportional to 19,707.60, 27,198.84 and 11,211.11 is: 15,472.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.60 : 27,198.84 = 11,211.11 : x
  2. Step 2: Convert to fraction form
    19,707.60/27,198.84 = 11,211.11/x
  3. Step 3: Cross multiply
    19,707.60x = 27,198.84 × 11,211.11
  4. Step 4: Simplify right side
    19,707.60x = 304,929,132.09
  5. Step 5: Solve for x
    x = 304,929,132.09/19,707.60
  6. Step 6: Final answer
    x = 15,472.66

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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.