Home / 18,985.69-26,200.43-11,028.25

Finding the Fourth Proportional to 18,985.69, 26,200.43 and 11,028.25

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Solution

The fourth proportional to 18,985.69, 26,200.43 and 11,028.25 is: 15,219.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,985.69 : 26,200.43 = 11,028.25 : x
  2. Step 2: Convert to fraction form
    18,985.69/26,200.43 = 11,028.25/x
  3. Step 3: Cross multiply
    18,985.69x = 26,200.43 × 11,028.25
  4. Step 4: Simplify right side
    18,985.69x = 288,944,837.01
  5. Step 5: Solve for x
    x = 288,944,837.01/18,985.69
  6. Step 6: Final answer
    x = 15,219.09

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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.