Home / 13,564.97-18,713.43-8,786.51

Finding the Fourth Proportional to 13,564.97, 18,713.43 and 8,786.51

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Solution

The fourth proportional to 13,564.97, 18,713.43 and 8,786.51 is: 12,121.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.97 : 18,713.43 = 8,786.51 : x
  2. Step 2: Convert to fraction form
    13,564.97/18,713.43 = 8,786.51/x
  3. Step 3: Cross multiply
    13,564.97x = 18,713.43 × 8,786.51
  4. Step 4: Simplify right side
    13,564.97x = 164,425,695.90
  5. Step 5: Solve for x
    x = 164,425,695.90/13,564.97
  6. Step 6: Final answer
    x = 12,121.35

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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.