Home / 11,847.75-16,349.90-7,132.95

Finding the Fourth Proportional to 11,847.75, 16,349.90 and 7,132.95

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Solution

The fourth proportional to 11,847.75, 16,349.90 and 7,132.95 is: 9,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,847.75 : 16,349.90 = 7,132.95 : x
  2. Step 2: Convert to fraction form
    11,847.75/16,349.90 = 7,132.95/x
  3. Step 3: Cross multiply
    11,847.75x = 16,349.90 × 7,132.95
  4. Step 4: Simplify right side
    11,847.75x = 116,622,983.54
  5. Step 5: Solve for x
    x = 116,622,983.54/11,847.75
  6. Step 6: Final answer
    x = 9,843.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.