Home / 11,688.86-17,540.97-4,293.38

Finding the Fourth Proportional to 11,688.86, 17,540.97 and 4,293.38

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Solution

The fourth proportional to 11,688.86, 17,540.97 and 4,293.38 is: 6,442.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.86 : 17,540.97 = 4,293.38 : x
  2. Step 2: Convert to fraction form
    11,688.86/17,540.97 = 4,293.38/x
  3. Step 3: Cross multiply
    11,688.86x = 17,540.97 × 4,293.38
  4. Step 4: Simplify right side
    11,688.86x = 75,310,077.53
  5. Step 5: Solve for x
    x = 75,310,077.53/11,688.86
  6. Step 6: Final answer
    x = 6,442.89

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1.5x scale

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.