Home / 17,786.57-26,681.37-5,305.79

Finding the Fourth Proportional to 17,786.57, 26,681.37 and 5,305.79

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Solution

The fourth proportional to 17,786.57, 26,681.37 and 5,305.79 is: 7,959.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,786.57 : 26,681.37 = 5,305.79 : x
  2. Step 2: Convert to fraction form
    17,786.57/26,681.37 = 5,305.79/x
  3. Step 3: Cross multiply
    17,786.57x = 26,681.37 × 5,305.79
  4. Step 4: Simplify right side
    17,786.57x = 141,565,746.13
  5. Step 5: Solve for x
    x = 141,565,746.13/17,786.57
  6. Step 6: Final answer
    x = 7,959.14

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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.