Home / 8,936.28-13,402.38-3,390.24

Finding the Fourth Proportional to 8,936.28, 13,402.38 and 3,390.24

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Solution

The fourth proportional to 8,936.28, 13,402.38 and 3,390.24 is: 5,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936.28 : 13,402.38 = 3,390.24 : x
  2. Step 2: Convert to fraction form
    8,936.28/13,402.38 = 3,390.24/x
  3. Step 3: Cross multiply
    8,936.28x = 13,402.38 × 3,390.24
  4. Step 4: Simplify right side
    8,936.28x = 45,437,284.77
  5. Step 5: Solve for x
    x = 45,437,284.77/8,936.28
  6. Step 6: Final answer
    x = 5,084.59

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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.