Home / 11,378.36-17,067.50-5,140.56

Finding the Fourth Proportional to 11,378.36, 17,067.50 and 5,140.56

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Solution

The fourth proportional to 11,378.36, 17,067.50 and 5,140.56 is: 7,710.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.36 : 17,067.50 = 5,140.56 : x
  2. Step 2: Convert to fraction form
    11,378.36/17,067.50 = 5,140.56/x
  3. Step 3: Cross multiply
    11,378.36x = 17,067.50 × 5,140.56
  4. Step 4: Simplify right side
    11,378.36x = 87,736,507.80
  5. Step 5: Solve for x
    x = 87,736,507.80/11,378.36
  6. Step 6: Final answer
    x = 7,710.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.