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Finding the Fourth Proportional to 8,887.84, 13,328 and 3,954.08

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Solution

The fourth proportional to 8,887.84, 13,328 and 3,954.08 is: 5,929.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.84 : 13,328 = 3,954.08 : x
  2. Step 2: Convert to fraction form
    8,887.84/13,328 = 3,954.08/x
  3. Step 3: Cross multiply
    8,887.84x = 13,328 × 3,954.08
  4. Step 4: Simplify right side
    8,887.84x = 52,699,978.24
  5. Step 5: Solve for x
    x = 52,699,978.24/8,887.84
  6. Step 6: Final answer
    x = 5,929.45

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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.