Home / 12,098.20-18,118.14-8,190.76

Finding the Fourth Proportional to 12,098.20, 18,118.14 and 8,190.76

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Solution

The fourth proportional to 12,098.20, 18,118.14 and 8,190.76 is: 12,266.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.20 : 18,118.14 = 8,190.76 : x
  2. Step 2: Convert to fraction form
    12,098.20/18,118.14 = 8,190.76/x
  3. Step 3: Cross multiply
    12,098.20x = 18,118.14 × 8,190.76
  4. Step 4: Simplify right side
    12,098.20x = 148,401,336.39
  5. Step 5: Solve for x
    x = 148,401,336.39/12,098.20
  6. Step 6: Final answer
    x = 12,266.40

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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.