Home / 13,053.92-18,001.17-11,171.75

Finding the Fourth Proportional to 13,053.92, 18,001.17 and 11,171.75

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Solution

The fourth proportional to 13,053.92, 18,001.17 and 11,171.75 is: 15,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.92 : 18,001.17 = 11,171.75 : x
  2. Step 2: Convert to fraction form
    13,053.92/18,001.17 = 11,171.75/x
  3. Step 3: Cross multiply
    13,053.92x = 18,001.17 × 11,171.75
  4. Step 4: Simplify right side
    13,053.92x = 201,104,480.94
  5. Step 5: Solve for x
    x = 201,104,480.94/13,053.92
  6. Step 6: Final answer
    x = 15,405.68

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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.