Home / 8,108.99-11,180.47-6,668.32

Finding the Fourth Proportional to 8,108.99, 11,180.47 and 6,668.32

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Solution

The fourth proportional to 8,108.99, 11,180.47 and 6,668.32 is: 9,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.99 : 11,180.47 = 6,668.32 : x
  2. Step 2: Convert to fraction form
    8,108.99/11,180.47 = 6,668.32/x
  3. Step 3: Cross multiply
    8,108.99x = 11,180.47 × 6,668.32
  4. Step 4: Simplify right side
    8,108.99x = 74,554,936.51
  5. Step 5: Solve for x
    x = 74,554,936.51/8,108.99
  6. Step 6: Final answer
    x = 9,194.11

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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.