Home / 8,682.24-11,979.36-5,143.44

Finding the Fourth Proportional to 8,682.24, 11,979.36 and 5,143.44

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Solution

The fourth proportional to 8,682.24, 11,979.36 and 5,143.44 is: 7,096.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.24 : 11,979.36 = 5,143.44 : x
  2. Step 2: Convert to fraction form
    8,682.24/11,979.36 = 5,143.44/x
  3. Step 3: Cross multiply
    8,682.24x = 11,979.36 × 5,143.44
  4. Step 4: Simplify right side
    8,682.24x = 61,615,119.40
  5. Step 5: Solve for x
    x = 61,615,119.40/8,682.24
  6. Step 6: Final answer
    x = 7,096.68

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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.