Home / 12,226.22-16,872.20-6,637.22

Finding the Fourth Proportional to 12,226.22, 16,872.20 and 6,637.22

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Solution

The fourth proportional to 12,226.22, 16,872.20 and 6,637.22 is: 9,159.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,226.22 : 16,872.20 = 6,637.22 : x
  2. Step 2: Convert to fraction form
    12,226.22/16,872.20 = 6,637.22/x
  3. Step 3: Cross multiply
    12,226.22x = 16,872.20 × 6,637.22
  4. Step 4: Simplify right side
    12,226.22x = 111,984,473.90
  5. Step 5: Solve for x
    x = 111,984,473.90/12,226.22
  6. Step 6: Final answer
    x = 9,159.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.