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Finding the Fourth Proportional to 8,885.88, 13,320.54 and 5,589

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Solution

The fourth proportional to 8,885.88, 13,320.54 and 5,589 is: 8,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.88 : 13,320.54 = 5,589 : x
  2. Step 2: Convert to fraction form
    8,885.88/13,320.54 = 5,589/x
  3. Step 3: Cross multiply
    8,885.88x = 13,320.54 × 5,589
  4. Step 4: Simplify right side
    8,885.88x = 74,448,498.06
  5. Step 5: Solve for x
    x = 74,448,498.06/8,885.88
  6. Step 6: Final answer
    x = 8,378.29

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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.