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Finding the Fourth Proportional to 8,709.88, 13,066.98 and 2,553.88

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Solution

The fourth proportional to 8,709.88, 13,066.98 and 2,553.88 is: 3,831.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,709.88 : 13,066.98 = 2,553.88 : x
  2. Step 2: Convert to fraction form
    8,709.88/13,066.98 = 2,553.88/x
  3. Step 3: Cross multiply
    8,709.88x = 13,066.98 × 2,553.88
  4. Step 4: Simplify right side
    8,709.88x = 33,371,420.78
  5. Step 5: Solve for x
    x = 33,371,420.78/8,709.88
  6. Step 6: Final answer
    x = 3,831.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.