Home / 13,197.03-18,211.94-7,228.95

Finding the Fourth Proportional to 13,197.03, 18,211.94 and 7,228.95

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Solution

The fourth proportional to 13,197.03, 18,211.94 and 7,228.95 is: 9,975.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.03 : 18,211.94 = 7,228.95 : x
  2. Step 2: Convert to fraction form
    13,197.03/18,211.94 = 7,228.95/x
  3. Step 3: Cross multiply
    13,197.03x = 18,211.94 × 7,228.95
  4. Step 4: Simplify right side
    13,197.03x = 131,653,203.66
  5. Step 5: Solve for x
    x = 131,653,203.66/13,197.03
  6. Step 6: Final answer
    x = 9,975.97

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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.