Home / 19,708.35-27,198.12-11,211.70

Finding the Fourth Proportional to 19,708.35, 27,198.12 and 11,211.70

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Solution

The fourth proportional to 19,708.35, 27,198.12 and 11,211.70 is: 15,472.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.35 : 27,198.12 = 11,211.70 : x
  2. Step 2: Convert to fraction form
    19,708.35/27,198.12 = 11,211.70/x
  3. Step 3: Cross multiply
    19,708.35x = 27,198.12 × 11,211.70
  4. Step 4: Simplify right side
    19,708.35x = 304,937,162.00
  5. Step 5: Solve for x
    x = 304,937,162.00/19,708.35
  6. Step 6: Final answer
    x = 15,472.49

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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.