Home / 18,717-28,080.14-5,569.34

Finding the Fourth Proportional to 18,717, 28,080.14 and 5,569.34

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Solution

The fourth proportional to 18,717, 28,080.14 and 5,569.34 is: 8,355.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,717 : 28,080.14 = 5,569.34 : x
  2. Step 2: Convert to fraction form
    18,717/28,080.14 = 5,569.34/x
  3. Step 3: Cross multiply
    18,717x = 28,080.14 × 5,569.34
  4. Step 4: Simplify right side
    18,717x = 156,387,678.66
  5. Step 5: Solve for x
    x = 156,387,678.66/18,717
  6. Step 6: Final answer
    x = 8,355.38

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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.