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Finding the Third Proportional to 13,603.78 and 19,266.19

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Solution

The third proportional to 13,603.78 and 19,266.19 is: 27,285.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.78 : 19,266.19 = 19,266.19 : x
  2. Step 2: Convert to fraction form
    13,603.78/19,266.19 = 19,266.19/x
  3. Step 3: Cross multiply
    13,603.78x = 19,266.19 × 19,266.19
  4. Step 4: Simplify right side
    13,603.78x = 371,185,980.79
  5. Step 5: Solve for x
    x = 371,185,980.79/13,603.78
  6. Step 6: Final answer
    x = 27,285.50

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.