Home / 8,290.21-12,436.12-2,448.49

Finding the Fourth Proportional to 8,290.21, 12,436.12 and 2,448.49

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Solution

The fourth proportional to 8,290.21, 12,436.12 and 2,448.49 is: 3,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.21 : 12,436.12 = 2,448.49 : x
  2. Step 2: Convert to fraction form
    8,290.21/12,436.12 = 2,448.49/x
  3. Step 3: Cross multiply
    8,290.21x = 12,436.12 × 2,448.49
  4. Step 4: Simplify right side
    8,290.21x = 30,449,653.28
  5. Step 5: Solve for x
    x = 30,449,653.28/8,290.21
  6. Step 6: Final answer
    x = 3,672.97

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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.