Home / 8,858.29-13,278.32-3,930.25

Finding the Fourth Proportional to 8,858.29, 13,278.32 and 3,930.25

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Solution

The fourth proportional to 8,858.29, 13,278.32 and 3,930.25 is: 5,891.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.29 : 13,278.32 = 3,930.25 : x
  2. Step 2: Convert to fraction form
    8,858.29/13,278.32 = 3,930.25/x
  3. Step 3: Cross multiply
    8,858.29x = 13,278.32 × 3,930.25
  4. Step 4: Simplify right side
    8,858.29x = 52,187,117.18
  5. Step 5: Solve for x
    x = 52,187,117.18/8,858.29
  6. Step 6: Final answer
    x = 5,891.33

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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.