Home / 19,561.14-26,991.78-11,064.42

Finding the Fourth Proportional to 19,561.14, 26,991.78 and 11,064.42

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Solution

The fourth proportional to 19,561.14, 26,991.78 and 11,064.42 is: 15,267.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561.14 : 26,991.78 = 11,064.42 : x
  2. Step 2: Convert to fraction form
    19,561.14/26,991.78 = 11,064.42/x
  3. Step 3: Cross multiply
    19,561.14x = 26,991.78 × 11,064.42
  4. Step 4: Simplify right side
    19,561.14x = 298,648,390.47
  5. Step 5: Solve for x
    x = 298,648,390.47/19,561.14
  6. Step 6: Final answer
    x = 15,267.43

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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.