Home / 19,139.94-26,404.52-11,177.45

Finding the Fourth Proportional to 19,139.94, 26,404.52 and 11,177.45

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Solution

The fourth proportional to 19,139.94, 26,404.52 and 11,177.45 is: 15,419.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,139.94 : 26,404.52 = 11,177.45 : x
  2. Step 2: Convert to fraction form
    19,139.94/26,404.52 = 11,177.45/x
  3. Step 3: Cross multiply
    19,139.94x = 26,404.52 × 11,177.45
  4. Step 4: Simplify right side
    19,139.94x = 295,135,014.16
  5. Step 5: Solve for x
    x = 295,135,014.16/19,139.94
  6. Step 6: Final answer
    x = 15,419.85

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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.