Home / 19,771.34-27,286.06-11,276.12

Finding the Fourth Proportional to 19,771.34, 27,286.06 and 11,276.12

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Solution

The fourth proportional to 19,771.34, 27,286.06 and 11,276.12 is: 15,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,771.34 : 27,286.06 = 11,276.12 : x
  2. Step 2: Convert to fraction form
    19,771.34/27,286.06 = 11,276.12/x
  3. Step 3: Cross multiply
    19,771.34x = 27,286.06 × 11,276.12
  4. Step 4: Simplify right side
    19,771.34x = 307,680,948.05
  5. Step 5: Solve for x
    x = 307,680,948.05/19,771.34
  6. Step 6: Final answer
    x = 15,561.97

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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.