Home / 18,986-26,200.40-11,032.70

Finding the Fourth Proportional to 18,986, 26,200.40 and 11,032.70

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Solution

The fourth proportional to 18,986, 26,200.40 and 11,032.70 is: 15,224.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,986 : 26,200.40 = 11,032.70 : x
  2. Step 2: Convert to fraction form
    18,986/26,200.40 = 11,032.70/x
  3. Step 3: Cross multiply
    18,986x = 26,200.40 × 11,032.70
  4. Step 4: Simplify right side
    18,986x = 289,061,153.08
  5. Step 5: Solve for x
    x = 289,061,153.08/18,986
  6. Step 6: Final answer
    x = 15,224.96

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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.