Home / 9,765.20-14,647.80-2,839.70

Finding the Fourth Proportional to 9,765.20, 14,647.80 and 2,839.70

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Solution

The fourth proportional to 9,765.20, 14,647.80 and 2,839.70 is: 4,259.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,765.20 : 14,647.80 = 2,839.70 : x
  2. Step 2: Convert to fraction form
    9,765.20/14,647.80 = 2,839.70/x
  3. Step 3: Cross multiply
    9,765.20x = 14,647.80 × 2,839.70
  4. Step 4: Simplify right side
    9,765.20x = 41,595,357.66
  5. Step 5: Solve for x
    x = 41,595,357.66/9,765.20
  6. Step 6: Final answer
    x = 4,259.55

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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.