Home / 8,198.40-12,290.29-3,003.06

Finding the Fourth Proportional to 8,198.40, 12,290.29 and 3,003.06

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Solution

The fourth proportional to 8,198.40, 12,290.29 and 3,003.06 is: 4,501.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.40 : 12,290.29 = 3,003.06 : x
  2. Step 2: Convert to fraction form
    8,198.40/12,290.29 = 3,003.06/x
  3. Step 3: Cross multiply
    8,198.40x = 12,290.29 × 3,003.06
  4. Step 4: Simplify right side
    8,198.40x = 36,908,401.82
  5. Step 5: Solve for x
    x = 36,908,401.82/8,198.40
  6. Step 6: Final answer
    x = 4,501.91

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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.