Home / 7,581.86-11,375.09-3,886.71

Finding the Fourth Proportional to 7,581.86, 11,375.09 and 3,886.71

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Solution

The fourth proportional to 7,581.86, 11,375.09 and 3,886.71 is: 5,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,581.86 : 11,375.09 = 3,886.71 : x
  2. Step 2: Convert to fraction form
    7,581.86/11,375.09 = 3,886.71/x
  3. Step 3: Cross multiply
    7,581.86x = 11,375.09 × 3,886.71
  4. Step 4: Simplify right side
    7,581.86x = 44,211,676.05
  5. Step 5: Solve for x
    x = 44,211,676.05/7,581.86
  6. Step 6: Final answer
    x = 5,831.24

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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.