Home / 8,135.31-12,204.23-2,871.02

Finding the Fourth Proportional to 8,135.31, 12,204.23 and 2,871.02

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Solution

The fourth proportional to 8,135.31, 12,204.23 and 2,871.02 is: 4,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,135.31 : 12,204.23 = 2,871.02 : x
  2. Step 2: Convert to fraction form
    8,135.31/12,204.23 = 2,871.02/x
  3. Step 3: Cross multiply
    8,135.31x = 12,204.23 × 2,871.02
  4. Step 4: Simplify right side
    8,135.31x = 35,038,588.41
  5. Step 5: Solve for x
    x = 35,038,588.41/8,135.31
  6. Step 6: Final answer
    x = 4,306.98

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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.