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Finding the Fourth Proportional to 19,019.50, 26,247 and 10,636

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Solution

The fourth proportional to 19,019.50, 26,247 and 10,636 is: 14,677.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,019.50 : 26,247 = 10,636 : x
  2. Step 2: Convert to fraction form
    19,019.50/26,247 = 10,636/x
  3. Step 3: Cross multiply
    19,019.50x = 26,247 × 10,636
  4. Step 4: Simplify right side
    19,019.50x = 279,163,092
  5. Step 5: Solve for x
    x = 279,163,092/19,019.50
  6. Step 6: Final answer
    x = 14,677.73

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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.