Home / 19,776.33-27,294.39-11,278.47

Finding the Fourth Proportional to 19,776.33, 27,294.39 and 11,278.47

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Solution

The fourth proportional to 19,776.33, 27,294.39 and 11,278.47 is: 15,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.33 : 27,294.39 = 11,278.47 : x
  2. Step 2: Convert to fraction form
    19,776.33/27,294.39 = 11,278.47/x
  3. Step 3: Cross multiply
    19,776.33x = 27,294.39 × 11,278.47
  4. Step 4: Simplify right side
    19,776.33x = 307,838,958.78
  5. Step 5: Solve for x
    x = 307,838,958.78/19,776.33
  6. Step 6: Final answer
    x = 15,566.03

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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.