Home / 13,626.57-18,805.19-8,323.77

Finding the Fourth Proportional to 13,626.57, 18,805.19 and 8,323.77

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Solution

The fourth proportional to 13,626.57, 18,805.19 and 8,323.77 is: 11,487.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,626.57 : 18,805.19 = 8,323.77 : x
  2. Step 2: Convert to fraction form
    13,626.57/18,805.19 = 8,323.77/x
  3. Step 3: Cross multiply
    13,626.57x = 18,805.19 × 8,323.77
  4. Step 4: Simplify right side
    13,626.57x = 156,530,076.37
  5. Step 5: Solve for x
    x = 156,530,076.37/13,626.57
  6. Step 6: Final answer
    x = 11,487.12

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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.