Home / 7,173.51-9,896.43-5,179.69

Finding the Fourth Proportional to 7,173.51, 9,896.43 and 5,179.69

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Solution

The fourth proportional to 7,173.51, 9,896.43 and 5,179.69 is: 7,145.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,173.51 : 9,896.43 = 5,179.69 : x
  2. Step 2: Convert to fraction form
    7,173.51/9,896.43 = 5,179.69/x
  3. Step 3: Cross multiply
    7,173.51x = 9,896.43 × 5,179.69
  4. Step 4: Simplify right side
    7,173.51x = 51,260,439.51
  5. Step 5: Solve for x
    x = 51,260,439.51/7,173.51
  6. Step 6: Final answer
    x = 7,145.80

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Double 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.