Home / 17,174.19-23,689.56-13,391.28

Finding the Fourth Proportional to 17,174.19, 23,689.56 and 13,391.28

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Solution

The fourth proportional to 17,174.19, 23,689.56 and 13,391.28 is: 18,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,174.19 : 23,689.56 = 13,391.28 : x
  2. Step 2: Convert to fraction form
    17,174.19/23,689.56 = 13,391.28/x
  3. Step 3: Cross multiply
    17,174.19x = 23,689.56 × 13,391.28
  4. Step 4: Simplify right side
    17,174.19x = 317,233,531.04
  5. Step 5: Solve for x
    x = 317,233,531.04/17,174.19
  6. Step 6: Final answer
    x = 18,471.53

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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.