Home / 11,688.86-16,131.11-6,653.97

Finding the Fourth Proportional to 11,688.86, 16,131.11 and 6,653.97

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Solution

The fourth proportional to 11,688.86, 16,131.11 and 6,653.97 is: 9,182.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.86 : 16,131.11 = 6,653.97 : x
  2. Step 2: Convert to fraction form
    11,688.86/16,131.11 = 6,653.97/x
  3. Step 3: Cross multiply
    11,688.86x = 16,131.11 × 6,653.97
  4. Step 4: Simplify right side
    11,688.86x = 107,335,922.01
  5. Step 5: Solve for x
    x = 107,335,922.01/11,688.86
  6. Step 6: Final answer
    x = 9,182.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.