Home / 7,378.30-11,067.34-1,831.69

Finding the Fourth Proportional to 7,378.30, 11,067.34 and 1,831.69

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Solution

The fourth proportional to 7,378.30, 11,067.34 and 1,831.69 is: 2,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.30 : 11,067.34 = 1,831.69 : x
  2. Step 2: Convert to fraction form
    7,378.30/11,067.34 = 1,831.69/x
  3. Step 3: Cross multiply
    7,378.30x = 11,067.34 × 1,831.69
  4. Step 4: Simplify right side
    7,378.30x = 20,271,979.82
  5. Step 5: Solve for x
    x = 20,271,979.82/7,378.30
  6. Step 6: Final answer
    x = 2,747.51

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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.