Home / 8,858.79-13,279.07-3,930.75

Finding the Fourth Proportional to 8,858.79, 13,279.07 and 3,930.75

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Solution

The fourth proportional to 8,858.79, 13,279.07 and 3,930.75 is: 5,892.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.79 : 13,279.07 = 3,930.75 : x
  2. Step 2: Convert to fraction form
    8,858.79/13,279.07 = 3,930.75/x
  3. Step 3: Cross multiply
    8,858.79x = 13,279.07 × 3,930.75
  4. Step 4: Simplify right side
    8,858.79x = 52,196,704.40
  5. Step 5: Solve for x
    x = 52,196,704.40/8,858.79
  6. Step 6: Final answer
    x = 5,892.08

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1.5x scale

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.