Home / 9,109.04-13,656.20-3,840.65

Finding the Fourth Proportional to 9,109.04, 13,656.20 and 3,840.65

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Solution

The fourth proportional to 9,109.04, 13,656.20 and 3,840.65 is: 5,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.04 : 13,656.20 = 3,840.65 : x
  2. Step 2: Convert to fraction form
    9,109.04/13,656.20 = 3,840.65/x
  3. Step 3: Cross multiply
    9,109.04x = 13,656.20 × 3,840.65
  4. Step 4: Simplify right side
    9,109.04x = 52,448,597.05
  5. Step 5: Solve for x
    x = 52,448,597.05/9,109.04
  6. Step 6: Final answer
    x = 5,757.87

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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.