Home / 8,173.80-12,261.81-2,625.30

Finding the Fourth Proportional to 8,173.80, 12,261.81 and 2,625.30

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Solution

The fourth proportional to 8,173.80, 12,261.81 and 2,625.30 is: 3,938.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.80 : 12,261.81 = 2,625.30 : x
  2. Step 2: Convert to fraction form
    8,173.80/12,261.81 = 2,625.30/x
  3. Step 3: Cross multiply
    8,173.80x = 12,261.81 × 2,625.30
  4. Step 4: Simplify right side
    8,173.80x = 32,190,929.79
  5. Step 5: Solve for x
    x = 32,190,929.79/8,173.80
  6. Step 6: Final answer
    x = 3,938.31

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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.