Home / 8,156.13-12,236.02-2,609.81

Finding the Fourth Proportional to 8,156.13, 12,236.02 and 2,609.81

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Solution

The fourth proportional to 8,156.13, 12,236.02 and 2,609.81 is: 3,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.13 : 12,236.02 = 2,609.81 : x
  2. Step 2: Convert to fraction form
    8,156.13/12,236.02 = 2,609.81/x
  3. Step 3: Cross multiply
    8,156.13x = 12,236.02 × 2,609.81
  4. Step 4: Simplify right side
    8,156.13x = 31,933,687.36
  5. Step 5: Solve for x
    x = 31,933,687.36/8,156.13
  6. Step 6: Final answer
    x = 3,915.30

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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.