Home / 8,104.34-11,186.11-5,279.47

Finding the Fourth Proportional to 8,104.34, 11,186.11 and 5,279.47

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Solution

The fourth proportional to 8,104.34, 11,186.11 and 5,279.47 is: 7,287.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.34 : 11,186.11 = 5,279.47 : x
  2. Step 2: Convert to fraction form
    8,104.34/11,186.11 = 5,279.47/x
  3. Step 3: Cross multiply
    8,104.34x = 11,186.11 × 5,279.47
  4. Step 4: Simplify right side
    8,104.34x = 59,056,710.80
  5. Step 5: Solve for x
    x = 59,056,710.80/8,104.34
  6. Step 6: Final answer
    x = 7,287.05

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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.