Home / 13,197.49-18,211.83-7,228.03

Finding the Fourth Proportional to 13,197.49, 18,211.83 and 7,228.03

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Solution

The fourth proportional to 13,197.49, 18,211.83 and 7,228.03 is: 9,974.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.49 : 18,211.83 = 7,228.03 : x
  2. Step 2: Convert to fraction form
    13,197.49/18,211.83 = 7,228.03/x
  3. Step 3: Cross multiply
    13,197.49x = 18,211.83 × 7,228.03
  4. Step 4: Simplify right side
    13,197.49x = 131,635,653.59
  5. Step 5: Solve for x
    x = 131,635,653.59/13,197.49
  6. Step 6: Final answer
    x = 9,974.29

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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.