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Finding the Fourth Proportional to 19,055, 26,295.90 and 11,603

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Solution

The fourth proportional to 19,055, 26,295.90 and 11,603 is: 16,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,055 : 26,295.90 = 11,603 : x
  2. Step 2: Convert to fraction form
    19,055/26,295.90 = 11,603/x
  3. Step 3: Cross multiply
    19,055x = 26,295.90 × 11,603
  4. Step 4: Simplify right side
    19,055x = 305,111,327.70
  5. Step 5: Solve for x
    x = 305,111,327.70/19,055
  6. Step 6: Final answer
    x = 16,012.14

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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.