Home / 11,701.28-16,147.79-6,396.09

Finding the Fourth Proportional to 11,701.28, 16,147.79 and 6,396.09

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Solution

The fourth proportional to 11,701.28, 16,147.79 and 6,396.09 is: 8,826.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,701.28 : 16,147.79 = 6,396.09 : x
  2. Step 2: Convert to fraction form
    11,701.28/16,147.79 = 6,396.09/x
  3. Step 3: Cross multiply
    11,701.28x = 16,147.79 × 6,396.09
  4. Step 4: Simplify right side
    11,701.28x = 103,282,718.14
  5. Step 5: Solve for x
    x = 103,282,718.14/11,701.28
  6. Step 6: Final answer
    x = 8,826.62

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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.