Home / 11,677.82-16,115.45-6,372.77

Finding the Fourth Proportional to 11,677.82, 16,115.45 and 6,372.77

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Solution

The fourth proportional to 11,677.82, 16,115.45 and 6,372.77 is: 8,794.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,677.82 : 16,115.45 = 6,372.77 : x
  2. Step 2: Convert to fraction form
    11,677.82/16,115.45 = 6,372.77/x
  3. Step 3: Cross multiply
    11,677.82x = 16,115.45 × 6,372.77
  4. Step 4: Simplify right side
    11,677.82x = 102,699,943.86
  5. Step 5: Solve for x
    x = 102,699,943.86/11,677.82
  6. Step 6: Final answer
    x = 8,794.45

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Half scale
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Double scale
Find fourth proportional to 11,678.82, 16,116.83 and 6,373.77
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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.