Home / 8,187.67-12,279.27-3,505.36

Finding the Fourth Proportional to 8,187.67, 12,279.27 and 3,505.36

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Solution

The fourth proportional to 8,187.67, 12,279.27 and 3,505.36 is: 5,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,187.67 : 12,279.27 = 3,505.36 : x
  2. Step 2: Convert to fraction form
    8,187.67/12,279.27 = 3,505.36/x
  3. Step 3: Cross multiply
    8,187.67x = 12,279.27 × 3,505.36
  4. Step 4: Simplify right side
    8,187.67x = 43,043,261.89
  5. Step 5: Solve for x
    x = 43,043,261.89/8,187.67
  6. Step 6: Final answer
    x = 5,257.08

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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.