Home / 8,114.04-11,187.14-6,620.44

Finding the Fourth Proportional to 8,114.04, 11,187.14 and 6,620.44

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Solution

The fourth proportional to 8,114.04, 11,187.14 and 6,620.44 is: 9,127.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,114.04 : 11,187.14 = 6,620.44 : x
  2. Step 2: Convert to fraction form
    8,114.04/11,187.14 = 6,620.44/x
  3. Step 3: Cross multiply
    8,114.04x = 11,187.14 × 6,620.44
  4. Step 4: Simplify right side
    8,114.04x = 74,063,789.14
  5. Step 5: Solve for x
    x = 74,063,789.14/8,114.04
  6. Step 6: Final answer
    x = 9,127.86

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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.