Home / 8,315.88-12,474.36-2,769.60

Finding the Fourth Proportional to 8,315.88, 12,474.36 and 2,769.60

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Solution

The fourth proportional to 8,315.88, 12,474.36 and 2,769.60 is: 4,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,315.88 : 12,474.36 = 2,769.60 : x
  2. Step 2: Convert to fraction form
    8,315.88/12,474.36 = 2,769.60/x
  3. Step 3: Cross multiply
    8,315.88x = 12,474.36 × 2,769.60
  4. Step 4: Simplify right side
    8,315.88x = 34,548,987.46
  5. Step 5: Solve for x
    x = 34,548,987.46/8,315.88
  6. Step 6: Final answer
    x = 4,154.58

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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.