Home / 11,864.36-16,372.29-6,486.70

Finding the Fourth Proportional to 11,864.36, 16,372.29 and 6,486.70

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Solution

The fourth proportional to 11,864.36, 16,372.29 and 6,486.70 is: 8,951.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,864.36 : 16,372.29 = 6,486.70 : x
  2. Step 2: Convert to fraction form
    11,864.36/16,372.29 = 6,486.70/x
  3. Step 3: Cross multiply
    11,864.36x = 16,372.29 × 6,486.70
  4. Step 4: Simplify right side
    11,864.36x = 106,202,147.64
  5. Step 5: Solve for x
    x = 106,202,147.64/11,864.36
  6. Step 6: Final answer
    x = 8,951.36

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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.