Home / 11,727.76-16,184.31-6,422.91

Finding the Fourth Proportional to 11,727.76, 16,184.31 and 6,422.91

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Solution

The fourth proportional to 11,727.76, 16,184.31 and 6,422.91 is: 8,863.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,727.76 : 16,184.31 = 6,422.91 : x
  2. Step 2: Convert to fraction form
    11,727.76/16,184.31 = 6,422.91/x
  3. Step 3: Cross multiply
    11,727.76x = 16,184.31 × 6,422.91
  4. Step 4: Simplify right side
    11,727.76x = 103,950,366.54
  5. Step 5: Solve for x
    x = 103,950,366.54/11,727.76
  6. Step 6: Final answer
    x = 8,863.62

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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.