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Finding the Fourth Proportional to 19,601.50, 27,053.72 and 11,218

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Solution

The fourth proportional to 19,601.50, 27,053.72 and 11,218 is: 15,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,601.50 : 27,053.72 = 11,218 : x
  2. Step 2: Convert to fraction form
    19,601.50/27,053.72 = 11,218/x
  3. Step 3: Cross multiply
    19,601.50x = 27,053.72 × 11,218
  4. Step 4: Simplify right side
    19,601.50x = 303,488,574.87
  5. Step 5: Solve for x
    x = 303,488,574.87/19,601.50
  6. Step 6: Final answer
    x = 15,482.93

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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.