Home / 8,045.28-12,069.53-2,780.48

Finding the Fourth Proportional to 8,045.28, 12,069.53 and 2,780.48

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Solution

The fourth proportional to 8,045.28, 12,069.53 and 2,780.48 is: 4,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045.28 : 12,069.53 = 2,780.48 : x
  2. Step 2: Convert to fraction form
    8,045.28/12,069.53 = 2,780.48/x
  3. Step 3: Cross multiply
    8,045.28x = 12,069.53 × 2,780.48
  4. Step 4: Simplify right side
    8,045.28x = 33,559,042.70
  5. Step 5: Solve for x
    x = 33,559,042.70/8,045.28
  6. Step 6: Final answer
    x = 4,171.27

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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.