Home / 8,109.92-11,192.79-4,754.08

Finding the Fourth Proportional to 8,109.92, 11,192.79 and 4,754.08

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Solution

The fourth proportional to 8,109.92, 11,192.79 and 4,754.08 is: 6,561.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.92 : 11,192.79 = 4,754.08 : x
  2. Step 2: Convert to fraction form
    8,109.92/11,192.79 = 4,754.08/x
  3. Step 3: Cross multiply
    8,109.92x = 11,192.79 × 4,754.08
  4. Step 4: Simplify right side
    8,109.92x = 53,211,387.94
  5. Step 5: Solve for x
    x = 53,211,387.94/8,109.92
  6. Step 6: Final answer
    x = 6,561.27

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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.