Home / 7,791.12-11,688.44-4,095.09

Finding the Fourth Proportional to 7,791.12, 11,688.44 and 4,095.09

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Solution

The fourth proportional to 7,791.12, 11,688.44 and 4,095.09 is: 6,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.12 : 11,688.44 = 4,095.09 : x
  2. Step 2: Convert to fraction form
    7,791.12/11,688.44 = 4,095.09/x
  3. Step 3: Cross multiply
    7,791.12x = 11,688.44 × 4,095.09
  4. Step 4: Simplify right side
    7,791.12x = 47,865,193.28
  5. Step 5: Solve for x
    x = 47,865,193.28/7,791.12
  6. Step 6: Final answer
    x = 6,143.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.