Home / 7,909.48-11,857.38-3,523.60

Finding the Fourth Proportional to 7,909.48, 11,857.38 and 3,523.60

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Solution

The fourth proportional to 7,909.48, 11,857.38 and 3,523.60 is: 5,282.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.48 : 11,857.38 = 3,523.60 : x
  2. Step 2: Convert to fraction form
    7,909.48/11,857.38 = 3,523.60/x
  3. Step 3: Cross multiply
    7,909.48x = 11,857.38 × 3,523.60
  4. Step 4: Simplify right side
    7,909.48x = 41,780,664.17
  5. Step 5: Solve for x
    x = 41,780,664.17/7,909.48
  6. Step 6: Final answer
    x = 5,282.35

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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.