Home / 13,195.86-18,209.60-7,226.37

Finding the Fourth Proportional to 13,195.86, 18,209.60 and 7,226.37

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Solution

The fourth proportional to 13,195.86, 18,209.60 and 7,226.37 is: 9,972.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.86 : 18,209.60 = 7,226.37 : x
  2. Step 2: Convert to fraction form
    13,195.86/18,209.60 = 7,226.37/x
  3. Step 3: Cross multiply
    13,195.86x = 18,209.60 × 7,226.37
  4. Step 4: Simplify right side
    13,195.86x = 131,589,307.15
  5. Step 5: Solve for x
    x = 131,589,307.15/13,195.86
  6. Step 6: Final answer
    x = 9,972.01

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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.