Home / 8,858.60-13,283.68-5,161.90

Finding the Fourth Proportional to 8,858.60, 13,283.68 and 5,161.90

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Solution

The fourth proportional to 8,858.60, 13,283.68 and 5,161.90 is: 7,740.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.60 : 13,283.68 = 5,161.90 : x
  2. Step 2: Convert to fraction form
    8,858.60/13,283.68 = 5,161.90/x
  3. Step 3: Cross multiply
    8,858.60x = 13,283.68 × 5,161.90
  4. Step 4: Simplify right side
    8,858.60x = 68,569,027.79
  5. Step 5: Solve for x
    x = 68,569,027.79/8,858.60
  6. Step 6: Final answer
    x = 7,740.39

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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.