Home / 8,691.24-11,995.68-4,914.56

Finding the Fourth Proportional to 8,691.24, 11,995.68 and 4,914.56

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Solution

The fourth proportional to 8,691.24, 11,995.68 and 4,914.56 is: 6,783.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.24 : 11,995.68 = 4,914.56 : x
  2. Step 2: Convert to fraction form
    8,691.24/11,995.68 = 4,914.56/x
  3. Step 3: Cross multiply
    8,691.24x = 11,995.68 × 4,914.56
  4. Step 4: Simplify right side
    8,691.24x = 58,953,489.10
  5. Step 5: Solve for x
    x = 58,953,489.10/8,691.24
  6. Step 6: Final answer
    x = 6,783.09

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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.