Home / 11,686.08-16,126.72-6,380.88

Finding the Fourth Proportional to 11,686.08, 16,126.72 and 6,380.88

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Solution

The fourth proportional to 11,686.08, 16,126.72 and 6,380.88 is: 8,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,686.08 : 16,126.72 = 6,380.88 : x
  2. Step 2: Convert to fraction form
    11,686.08/16,126.72 = 6,380.88/x
  3. Step 3: Cross multiply
    11,686.08x = 16,126.72 × 6,380.88
  4. Step 4: Simplify right side
    11,686.08x = 102,902,665.11
  5. Step 5: Solve for x
    x = 102,902,665.11/11,686.08
  6. Step 6: Final answer
    x = 8,805.58

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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.