Home / 11,296.61-16,921.90-5,355.49

Finding the Fourth Proportional to 11,296.61, 16,921.90 and 5,355.49

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Solution

The fourth proportional to 11,296.61, 16,921.90 and 5,355.49 is: 8,022.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296.61 : 16,921.90 = 5,355.49 : x
  2. Step 2: Convert to fraction form
    11,296.61/16,921.90 = 5,355.49/x
  3. Step 3: Cross multiply
    11,296.61x = 16,921.90 × 5,355.49
  4. Step 4: Simplify right side
    11,296.61x = 90,624,954.84
  5. Step 5: Solve for x
    x = 90,624,954.84/11,296.61
  6. Step 6: Final answer
    x = 8,022.32

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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.