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Finding the Fourth Proportional to 12,049.78, 18,051.44 and 7,356.38

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Solution

The fourth proportional to 12,049.78, 18,051.44 and 7,356.38 is: 11,020.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,049.78 : 18,051.44 = 7,356.38 : x
  2. Step 2: Convert to fraction form
    12,049.78/18,051.44 = 7,356.38/x
  3. Step 3: Cross multiply
    12,049.78x = 18,051.44 × 7,356.38
  4. Step 4: Simplify right side
    12,049.78x = 132,793,252.19
  5. Step 5: Solve for x
    x = 132,793,252.19/12,049.78
  6. Step 6: Final answer
    x = 11,020.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.