Home / 7,378.09-11,067.47-2,113.87

Finding the Fourth Proportional to 7,378.09, 11,067.47 and 2,113.87

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Solution

The fourth proportional to 7,378.09, 11,067.47 and 2,113.87 is: 3,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.09 : 11,067.47 = 2,113.87 : x
  2. Step 2: Convert to fraction form
    7,378.09/11,067.47 = 2,113.87/x
  3. Step 3: Cross multiply
    7,378.09x = 11,067.47 × 2,113.87
  4. Step 4: Simplify right side
    7,378.09x = 23,395,223.29
  5. Step 5: Solve for x
    x = 23,395,223.29/7,378.09
  6. Step 6: Final answer
    x = 3,170.91

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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.