Home / 8,921.68-13,372.44-4,299.28

Finding the Fourth Proportional to 8,921.68, 13,372.44 and 4,299.28

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Solution

The fourth proportional to 8,921.68, 13,372.44 and 4,299.28 is: 6,444.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.68 : 13,372.44 = 4,299.28 : x
  2. Step 2: Convert to fraction form
    8,921.68/13,372.44 = 4,299.28/x
  3. Step 3: Cross multiply
    8,921.68x = 13,372.44 × 4,299.28
  4. Step 4: Simplify right side
    8,921.68x = 57,491,863.84
  5. Step 5: Solve for x
    x = 57,491,863.84/8,921.68
  6. Step 6: Final answer
    x = 6,444.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.