Home / 11,815.25-16,295.11-7,098.62

Finding the Fourth Proportional to 11,815.25, 16,295.11 and 7,098.62

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Solution

The fourth proportional to 11,815.25, 16,295.11 and 7,098.62 is: 9,790.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.25 : 16,295.11 = 7,098.62 : x
  2. Step 2: Convert to fraction form
    11,815.25/16,295.11 = 7,098.62/x
  3. Step 3: Cross multiply
    11,815.25x = 16,295.11 × 7,098.62
  4. Step 4: Simplify right side
    11,815.25x = 115,672,694.53
  5. Step 5: Solve for x
    x = 115,672,694.53/11,815.25
  6. Step 6: Final answer
    x = 9,790.12

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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.