Home / 13,195.05-18,208.52-7,226.74

Finding the Fourth Proportional to 13,195.05, 18,208.52 and 7,226.74

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Solution

The fourth proportional to 13,195.05, 18,208.52 and 7,226.74 is: 9,972.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.05 : 18,208.52 = 7,226.74 : x
  2. Step 2: Convert to fraction form
    13,195.05/18,208.52 = 7,226.74/x
  3. Step 3: Cross multiply
    13,195.05x = 18,208.52 × 7,226.74
  4. Step 4: Simplify right side
    13,195.05x = 131,588,203.69
  5. Step 5: Solve for x
    x = 131,588,203.69/13,195.05
  6. Step 6: Final answer
    x = 9,972.55

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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.