Home / 11,716.61-16,168.86-6,339.05

Finding the Fourth Proportional to 11,716.61, 16,168.86 and 6,339.05

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Solution

The fourth proportional to 11,716.61, 16,168.86 and 6,339.05 is: 8,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,716.61 : 16,168.86 = 6,339.05 : x
  2. Step 2: Convert to fraction form
    11,716.61/16,168.86 = 6,339.05/x
  3. Step 3: Cross multiply
    11,716.61x = 16,168.86 × 6,339.05
  4. Step 4: Simplify right side
    11,716.61x = 102,495,131.14
  5. Step 5: Solve for x
    x = 102,495,131.14/11,716.61
  6. Step 6: Final answer
    x = 8,747.85

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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.