Home / 12,098.21-18,144.27-4,305.20

Finding the Fourth Proportional to 12,098.21, 18,144.27 and 4,305.20

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Solution

The fourth proportional to 12,098.21, 18,144.27 and 4,305.20 is: 6,456.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,098.21 : 18,144.27 = 4,305.20 : x
  2. Step 2: Convert to fraction form
    12,098.21/18,144.27 = 4,305.20/x
  3. Step 3: Cross multiply
    12,098.21x = 18,144.27 × 4,305.20
  4. Step 4: Simplify right side
    12,098.21x = 78,114,711.20
  5. Step 5: Solve for x
    x = 78,114,711.20/12,098.21
  6. Step 6: Final answer
    x = 6,456.72

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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.