Home / 13,195.27-18,208.80-7,226.58

Finding the Fourth Proportional to 13,195.27, 18,208.80 and 7,226.58

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Solution

The fourth proportional to 13,195.27, 18,208.80 and 7,226.58 is: 9,972.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.27 : 18,208.80 = 7,226.58 : x
  2. Step 2: Convert to fraction form
    13,195.27/18,208.80 = 7,226.58/x
  3. Step 3: Cross multiply
    13,195.27x = 18,208.80 × 7,226.58
  4. Step 4: Simplify right side
    13,195.27x = 131,587,418.19
  5. Step 5: Solve for x
    x = 131,587,418.19/13,195.27
  6. Step 6: Final answer
    x = 9,972.32

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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.