Home / 11,656.78-16,086.29-6,351.58

Finding the Fourth Proportional to 11,656.78, 16,086.29 and 6,351.58

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Solution

The fourth proportional to 11,656.78, 16,086.29 and 6,351.58 is: 8,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.78 : 16,086.29 = 6,351.58 : x
  2. Step 2: Convert to fraction form
    11,656.78/16,086.29 = 6,351.58/x
  3. Step 3: Cross multiply
    11,656.78x = 16,086.29 × 6,351.58
  4. Step 4: Simplify right side
    11,656.78x = 102,173,285.86
  5. Step 5: Solve for x
    x = 102,173,285.86/11,656.78
  6. Step 6: Final answer
    x = 8,765.14

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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.