Home / 17,786.88-26,691-7,111.33

Finding the Fourth Proportional to 17,786.88, 26,691 and 7,111.33

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Solution

The fourth proportional to 17,786.88, 26,691 and 7,111.33 is: 10,671.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,786.88 : 26,691 = 7,111.33 : x
  2. Step 2: Convert to fraction form
    17,786.88/26,691 = 7,111.33/x
  3. Step 3: Cross multiply
    17,786.88x = 26,691 × 7,111.33
  4. Step 4: Simplify right side
    17,786.88x = 189,808,509.03
  5. Step 5: Solve for x
    x = 189,808,509.03/17,786.88
  6. Step 6: Final answer
    x = 10,671.26

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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.