Home / 8,119.79-11,203.37-5,601.09

Finding the Fourth Proportional to 8,119.79, 11,203.37 and 5,601.09

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Solution

The fourth proportional to 8,119.79, 11,203.37 and 5,601.09 is: 7,728.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.79 : 11,203.37 = 5,601.09 : x
  2. Step 2: Convert to fraction form
    8,119.79/11,203.37 = 5,601.09/x
  3. Step 3: Cross multiply
    8,119.79x = 11,203.37 × 5,601.09
  4. Step 4: Simplify right side
    8,119.79x = 62,751,055.67
  5. Step 5: Solve for x
    x = 62,751,055.67/8,119.79
  6. Step 6: Final answer
    x = 7,728.17

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Half scale
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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.