Home / 19,770.35-27,296.06-11,815.07

Finding the Fourth Proportional to 19,770.35, 27,296.06 and 11,815.07

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Solution

The fourth proportional to 19,770.35, 27,296.06 and 11,815.07 is: 16,312.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,770.35 : 27,296.06 = 11,815.07 : x
  2. Step 2: Convert to fraction form
    19,770.35/27,296.06 = 11,815.07/x
  3. Step 3: Cross multiply
    19,770.35x = 27,296.06 × 11,815.07
  4. Step 4: Simplify right side
    19,770.35x = 322,504,664.07
  5. Step 5: Solve for x
    x = 322,504,664.07/19,770.35
  6. Step 6: Final answer
    x = 16,312.55

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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.