Home / 18,468.36-27,690-10,579.80

Finding the Fourth Proportional to 18,468.36, 27,690 and 10,579.80

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Solution

The fourth proportional to 18,468.36, 27,690 and 10,579.80 is: 15,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,468.36 : 27,690 = 10,579.80 : x
  2. Step 2: Convert to fraction form
    18,468.36/27,690 = 10,579.80/x
  3. Step 3: Cross multiply
    18,468.36x = 27,690 × 10,579.80
  4. Step 4: Simplify right side
    18,468.36x = 292,954,662
  5. Step 5: Solve for x
    x = 292,954,662/18,468.36
  6. Step 6: Final answer
    x = 15,862.52

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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.