Home / 17,120.91-25,689.51-11,864.01

Finding the Fourth Proportional to 17,120.91, 25,689.51 and 11,864.01

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Solution

The fourth proportional to 17,120.91, 25,689.51 and 11,864.01 is: 17,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,120.91 : 25,689.51 = 11,864.01 : x
  2. Step 2: Convert to fraction form
    17,120.91/25,689.51 = 11,864.01/x
  3. Step 3: Cross multiply
    17,120.91x = 25,689.51 × 11,864.01
  4. Step 4: Simplify right side
    17,120.91x = 304,780,603.54
  5. Step 5: Solve for x
    x = 304,780,603.54/17,120.91
  6. Step 6: Final answer
    x = 17,801.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.