Home / 13,226.06-18,246.96-8,446.20

Finding the Fourth Proportional to 13,226.06, 18,246.96 and 8,446.20

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Solution

The fourth proportional to 13,226.06, 18,246.96 and 8,446.20 is: 11,652.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,226.06 : 18,246.96 = 8,446.20 : x
  2. Step 2: Convert to fraction form
    13,226.06/18,246.96 = 8,446.20/x
  3. Step 3: Cross multiply
    13,226.06x = 18,246.96 × 8,446.20
  4. Step 4: Simplify right side
    13,226.06x = 154,117,473.55
  5. Step 5: Solve for x
    x = 154,117,473.55/13,226.06
  6. Step 6: Final answer
    x = 11,652.56

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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.