Home / 18,726.54-28,080.38-6,242.18

Finding the Fourth Proportional to 18,726.54, 28,080.38 and 6,242.18

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Solution

The fourth proportional to 18,726.54, 28,080.38 and 6,242.18 is: 9,360.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,726.54 : 28,080.38 = 6,242.18 : x
  2. Step 2: Convert to fraction form
    18,726.54/28,080.38 = 6,242.18/x
  3. Step 3: Cross multiply
    18,726.54x = 28,080.38 × 6,242.18
  4. Step 4: Simplify right side
    18,726.54x = 175,282,786.43
  5. Step 5: Solve for x
    x = 175,282,786.43/18,726.54
  6. Step 6: Final answer
    x = 9,360.13

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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.