Home / 7,449.86-11,176.77-2,518.78

Finding the Fourth Proportional to 7,449.86, 11,176.77 and 2,518.78

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Solution

The fourth proportional to 7,449.86, 11,176.77 and 2,518.78 is: 3,778.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,449.86 : 11,176.77 = 2,518.78 : x
  2. Step 2: Convert to fraction form
    7,449.86/11,176.77 = 2,518.78/x
  3. Step 3: Cross multiply
    7,449.86x = 11,176.77 × 2,518.78
  4. Step 4: Simplify right side
    7,449.86x = 28,151,824.74
  5. Step 5: Solve for x
    x = 28,151,824.74/7,449.86
  6. Step 6: Final answer
    x = 3,778.84

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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.