Home / 18,907.11-28,360.67-5,055.75

Finding the Fourth Proportional to 18,907.11, 28,360.67 and 5,055.75

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Solution

The fourth proportional to 18,907.11, 28,360.67 and 5,055.75 is: 7,583.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,907.11 : 28,360.67 = 5,055.75 : x
  2. Step 2: Convert to fraction form
    18,907.11/28,360.67 = 5,055.75/x
  3. Step 3: Cross multiply
    18,907.11x = 28,360.67 × 5,055.75
  4. Step 4: Simplify right side
    18,907.11x = 143,384,432.07
  5. Step 5: Solve for x
    x = 143,384,432.07/18,907.11
  6. Step 6: Final answer
    x = 7,583.63

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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.