Home / 11,686.14-16,126.83-6,381.45

Finding the Fourth Proportional to 11,686.14, 16,126.83 and 6,381.45

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Solution

The fourth proportional to 11,686.14, 16,126.83 and 6,381.45 is: 8,806.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.14 : 16,126.83 = 6,381.45 : x
  2. Step 2: Convert to fraction form
    11,686.14/16,126.83 = 6,381.45/x
  3. Step 3: Cross multiply
    11,686.14x = 16,126.83 × 6,381.45
  4. Step 4: Simplify right side
    11,686.14x = 102,912,559.30
  5. Step 5: Solve for x
    x = 102,912,559.30/11,686.14
  6. Step 6: Final answer
    x = 8,806.38

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Half scale
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Double scale
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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.