Home / 8,188.29-11,300.31-7,714.44

Finding the Fourth Proportional to 8,188.29, 11,300.31 and 7,714.44

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Solution

The fourth proportional to 8,188.29, 11,300.31 and 7,714.44 is: 10,646.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,188.29 : 11,300.31 = 7,714.44 : x
  2. Step 2: Convert to fraction form
    8,188.29/11,300.31 = 7,714.44/x
  3. Step 3: Cross multiply
    8,188.29x = 11,300.31 × 7,714.44
  4. Step 4: Simplify right side
    8,188.29x = 87,175,563.48
  5. Step 5: Solve for x
    x = 87,175,563.48/8,188.29
  6. Step 6: Final answer
    x = 10,646.37

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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.