Home / 11,194.01-15,458.10-7,221.95

Finding the Fourth Proportional to 11,194.01, 15,458.10 and 7,221.95

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Solution

The fourth proportional to 11,194.01, 15,458.10 and 7,221.95 is: 9,972.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,194.01 : 15,458.10 = 7,221.95 : x
  2. Step 2: Convert to fraction form
    11,194.01/15,458.10 = 7,221.95/x
  3. Step 3: Cross multiply
    11,194.01x = 15,458.10 × 7,221.95
  4. Step 4: Simplify right side
    11,194.01x = 111,637,613.73
  5. Step 5: Solve for x
    x = 111,637,613.73/11,194.01
  6. Step 6: Final answer
    x = 9,972.98

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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.