Home / 11,767.20-17,629.20-9,909.60

Finding the Fourth Proportional to 11,767.20, 17,629.20 and 9,909.60

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Solution

The fourth proportional to 11,767.20, 17,629.20 and 9,909.60 is: 14,846.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,767.20 : 17,629.20 = 9,909.60 : x
  2. Step 2: Convert to fraction form
    11,767.20/17,629.20 = 9,909.60/x
  3. Step 3: Cross multiply
    11,767.20x = 17,629.20 × 9,909.60
  4. Step 4: Simplify right side
    11,767.20x = 174,698,320.32
  5. Step 5: Solve for x
    x = 174,698,320.32/11,767.20
  6. Step 6: Final answer
    x = 14,846.21

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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.