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Finding the Fourth Proportional to 18,667.68, 25,762 and 10,711.92

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Solution

The fourth proportional to 18,667.68, 25,762 and 10,711.92 is: 14,782.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.68 : 25,762 = 10,711.92 : x
  2. Step 2: Convert to fraction form
    18,667.68/25,762 = 10,711.92/x
  3. Step 3: Cross multiply
    18,667.68x = 25,762 × 10,711.92
  4. Step 4: Simplify right side
    18,667.68x = 275,960,483.04
  5. Step 5: Solve for x
    x = 275,960,483.04/18,667.68
  6. Step 6: Final answer
    x = 14,782.79

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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.