Home / 7,674.32-11,511.30-3,777.68

Finding the Fourth Proportional to 7,674.32, 11,511.30 and 3,777.68

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Solution

The fourth proportional to 7,674.32, 11,511.30 and 3,777.68 is: 5,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,674.32 : 11,511.30 = 3,777.68 : x
  2. Step 2: Convert to fraction form
    7,674.32/11,511.30 = 3,777.68/x
  3. Step 3: Cross multiply
    7,674.32x = 11,511.30 × 3,777.68
  4. Step 4: Simplify right side
    7,674.32x = 43,486,007.78
  5. Step 5: Solve for x
    x = 43,486,007.78/7,674.32
  6. Step 6: Final answer
    x = 5,666.43

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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.