Home / 13,195.80-18,210.20-7,227.84

Finding the Fourth Proportional to 13,195.80, 18,210.20 and 7,227.84

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Solution

The fourth proportional to 13,195.80, 18,210.20 and 7,227.84 is: 9,974.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.80 : 18,210.20 = 7,227.84 : x
  2. Step 2: Convert to fraction form
    13,195.80/18,210.20 = 7,227.84/x
  3. Step 3: Cross multiply
    13,195.80x = 18,210.20 × 7,227.84
  4. Step 4: Simplify right side
    13,195.80x = 131,620,411.97
  5. Step 5: Solve for x
    x = 131,620,411.97/13,195.80
  6. Step 6: Final answer
    x = 9,974.42

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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.