Home / 18,538-25,582.80-10,155.04

Finding the Fourth Proportional to 18,538, 25,582.80 and 10,155.04

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Solution

The fourth proportional to 18,538, 25,582.80 and 10,155.04 is: 14,014.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,538 : 25,582.80 = 10,155.04 : x
  2. Step 2: Convert to fraction form
    18,538/25,582.80 = 10,155.04/x
  3. Step 3: Cross multiply
    18,538x = 25,582.80 × 10,155.04
  4. Step 4: Simplify right side
    18,538x = 259,794,357.31
  5. Step 5: Solve for x
    x = 259,794,357.31/18,538
  6. Step 6: Final answer
    x = 14,014.15

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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.