Home / 13,209.59-18,198.60-9,224.39

Finding the Fourth Proportional to 13,209.59, 18,198.60 and 9,224.39

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Solution

The fourth proportional to 13,209.59, 18,198.60 and 9,224.39 is: 12,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.59 : 18,198.60 = 9,224.39 : x
  2. Step 2: Convert to fraction form
    13,209.59/18,198.60 = 9,224.39/x
  3. Step 3: Cross multiply
    13,209.59x = 18,198.60 × 9,224.39
  4. Step 4: Simplify right side
    13,209.59x = 167,870,983.85
  5. Step 5: Solve for x
    x = 167,870,983.85/13,209.59
  6. Step 6: Final answer
    x = 12,708.27

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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.