Home / 11,677.86-16,115.31-6,372.72

Finding the Fourth Proportional to 11,677.86, 16,115.31 and 6,372.72

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Solution

The fourth proportional to 11,677.86, 16,115.31 and 6,372.72 is: 8,794.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.86 : 16,115.31 = 6,372.72 : x
  2. Step 2: Convert to fraction form
    11,677.86/16,115.31 = 6,372.72/x
  3. Step 3: Cross multiply
    11,677.86x = 16,115.31 × 6,372.72
  4. Step 4: Simplify right side
    11,677.86x = 102,698,358.34
  5. Step 5: Solve for x
    x = 102,698,358.34/11,677.86
  6. Step 6: Final answer
    x = 8,794.28

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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.