Home / 11,317.45-16,975.90-4,391.95

Finding the Fourth Proportional to 11,317.45, 16,975.90 and 4,391.95

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Solution

The fourth proportional to 11,317.45, 16,975.90 and 4,391.95 is: 6,587.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,317.45 : 16,975.90 = 4,391.95 : x
  2. Step 2: Convert to fraction form
    11,317.45/16,975.90 = 4,391.95/x
  3. Step 3: Cross multiply
    11,317.45x = 16,975.90 × 4,391.95
  4. Step 4: Simplify right side
    11,317.45x = 74,557,304.01
  5. Step 5: Solve for x
    x = 74,557,304.01/11,317.45
  6. Step 6: Final answer
    x = 6,587.82

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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.