Home / 11,656.90-16,086.52-6,351.71

Finding the Fourth Proportional to 11,656.90, 16,086.52 and 6,351.71

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Solution

The fourth proportional to 11,656.90, 16,086.52 and 6,351.71 is: 8,765.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,656.90 : 16,086.52 = 6,351.71 : x
  2. Step 2: Convert to fraction form
    11,656.90/16,086.52 = 6,351.71/x
  3. Step 3: Cross multiply
    11,656.90x = 16,086.52 × 6,351.71
  4. Step 4: Simplify right side
    11,656.90x = 102,176,909.95
  5. Step 5: Solve for x
    x = 102,176,909.95/11,656.90
  6. Step 6: Final answer
    x = 8,765.36

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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.