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Finding the Fourth Proportional to 12,253.07, 16,906.97 and 7,218.11

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Solution

The fourth proportional to 12,253.07, 16,906.97 and 7,218.11 is: 9,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253.07 : 16,906.97 = 7,218.11 : x
  2. Step 2: Convert to fraction form
    12,253.07/16,906.97 = 7,218.11/x
  3. Step 3: Cross multiply
    12,253.07x = 16,906.97 × 7,218.11
  4. Step 4: Simplify right side
    12,253.07x = 122,036,248.60
  5. Step 5: Solve for x
    x = 122,036,248.60/12,253.07
  6. Step 6: Final answer
    x = 9,959.65

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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.