Home / 17,138.68-23,664.78-13,153.48

Finding the Fourth Proportional to 17,138.68, 23,664.78 and 13,153.48

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Solution

The fourth proportional to 17,138.68, 23,664.78 and 13,153.48 is: 18,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,138.68 : 23,664.78 = 13,153.48 : x
  2. Step 2: Convert to fraction form
    17,138.68/23,664.78 = 13,153.48/x
  3. Step 3: Cross multiply
    17,138.68x = 23,664.78 × 13,153.48
  4. Step 4: Simplify right side
    17,138.68x = 311,274,210.43
  5. Step 5: Solve for x
    x = 311,274,210.43/17,138.68
  6. Step 6: Final answer
    x = 18,162.09

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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.