Home / 9,149.72-13,718.37-2,907.86

Finding the Fourth Proportional to 9,149.72, 13,718.37 and 2,907.86

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Solution

The fourth proportional to 9,149.72, 13,718.37 and 2,907.86 is: 4,359.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,149.72 : 13,718.37 = 2,907.86 : x
  2. Step 2: Convert to fraction form
    9,149.72/13,718.37 = 2,907.86/x
  3. Step 3: Cross multiply
    9,149.72x = 13,718.37 × 2,907.86
  4. Step 4: Simplify right side
    9,149.72x = 39,891,099.39
  5. Step 5: Solve for x
    x = 39,891,099.39/9,149.72
  6. Step 6: Final answer
    x = 4,359.82

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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.