Home / 12,550.62-17,320-7,837.64

Finding the Fourth Proportional to 12,550.62, 17,320 and 7,837.64

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Solution

The fourth proportional to 12,550.62, 17,320 and 7,837.64 is: 10,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,550.62 : 17,320 = 7,837.64 : x
  2. Step 2: Convert to fraction form
    12,550.62/17,320 = 7,837.64/x
  3. Step 3: Cross multiply
    12,550.62x = 17,320 × 7,837.64
  4. Step 4: Simplify right side
    12,550.62x = 135,747,924.80
  5. Step 5: Solve for x
    x = 135,747,924.80/12,550.62
  6. Step 6: Final answer
    x = 10,816.03

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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.