Home / 18,633.13-25,722.11-12,263.06

Finding the Fourth Proportional to 18,633.13, 25,722.11 and 12,263.06

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Solution

The fourth proportional to 18,633.13, 25,722.11 and 12,263.06 is: 16,928.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.13 : 25,722.11 = 12,263.06 : x
  2. Step 2: Convert to fraction form
    18,633.13/25,722.11 = 12,263.06/x
  3. Step 3: Cross multiply
    18,633.13x = 25,722.11 × 12,263.06
  4. Step 4: Simplify right side
    18,633.13x = 315,431,815.91
  5. Step 5: Solve for x
    x = 315,431,815.91/18,633.13
  6. Step 6: Final answer
    x = 16,928.55

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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.