Home / 8,117.91-11,192.45-6,608.07

Finding the Fourth Proportional to 8,117.91, 11,192.45 and 6,608.07

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Solution

The fourth proportional to 8,117.91, 11,192.45 and 6,608.07 is: 9,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.91 : 11,192.45 = 6,608.07 : x
  2. Step 2: Convert to fraction form
    8,117.91/11,192.45 = 6,608.07/x
  3. Step 3: Cross multiply
    8,117.91x = 11,192.45 × 6,608.07
  4. Step 4: Simplify right side
    8,117.91x = 73,960,460.03
  5. Step 5: Solve for x
    x = 73,960,460.03/8,117.91
  6. Step 6: Final answer
    x = 9,110.78

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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.