Home / 19,776.53-27,291.72-11,162.79

Finding the Fourth Proportional to 19,776.53, 27,291.72 and 11,162.79

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Solution

The fourth proportional to 19,776.53, 27,291.72 and 11,162.79 is: 15,404.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.53 : 27,291.72 = 11,162.79 : x
  2. Step 2: Convert to fraction form
    19,776.53/27,291.72 = 11,162.79/x
  3. Step 3: Cross multiply
    19,776.53x = 27,291.72 × 11,162.79
  4. Step 4: Simplify right side
    19,776.53x = 304,651,739.10
  5. Step 5: Solve for x
    x = 304,651,739.10/19,776.53
  6. Step 6: Final answer
    x = 15,404.71

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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.