Home / 18,907.87-28,366.03-5,761.27

Finding the Fourth Proportional to 18,907.87, 28,366.03 and 5,761.27

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Solution

The fourth proportional to 18,907.87, 28,366.03 and 5,761.27 is: 8,643.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.87 : 28,366.03 = 5,761.27 : x
  2. Step 2: Convert to fraction form
    18,907.87/28,366.03 = 5,761.27/x
  3. Step 3: Cross multiply
    18,907.87x = 28,366.03 × 5,761.27
  4. Step 4: Simplify right side
    18,907.87x = 163,424,357.66
  5. Step 5: Solve for x
    x = 163,424,357.66/18,907.87
  6. Step 6: Final answer
    x = 8,643.19

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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.