Home / 8,539.20-11,791.44-5,400.96

Finding the Fourth Proportional to 8,539.20, 11,791.44 and 5,400.96

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Solution

The fourth proportional to 8,539.20, 11,791.44 and 5,400.96 is: 7,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.20 : 11,791.44 = 5,400.96 : x
  2. Step 2: Convert to fraction form
    8,539.20/11,791.44 = 5,400.96/x
  3. Step 3: Cross multiply
    8,539.20x = 11,791.44 × 5,400.96
  4. Step 4: Simplify right side
    8,539.20x = 63,685,095.78
  5. Step 5: Solve for x
    x = 63,685,095.78/8,539.20
  6. Step 6: Final answer
    x = 7,457.97

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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.