Home / 8,682.35-11,979.56-5,144.94

Finding the Fourth Proportional to 8,682.35, 11,979.56 and 5,144.94

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Solution

The fourth proportional to 8,682.35, 11,979.56 and 5,144.94 is: 7,098.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.35 : 11,979.56 = 5,144.94 : x
  2. Step 2: Convert to fraction form
    8,682.35/11,979.56 = 5,144.94/x
  3. Step 3: Cross multiply
    8,682.35x = 11,979.56 × 5,144.94
  4. Step 4: Simplify right side
    8,682.35x = 61,634,130.29
  5. Step 5: Solve for x
    x = 61,634,130.29/8,682.35
  6. Step 6: Final answer
    x = 7,098.79

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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.