Home / 16,390.36-24,591.72-9,821.28

Finding the Fourth Proportional to 16,390.36, 24,591.72 and 9,821.28

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Solution

The fourth proportional to 16,390.36, 24,591.72 and 9,821.28 is: 14,735.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.36 : 24,591.72 = 9,821.28 : x
  2. Step 2: Convert to fraction form
    16,390.36/24,591.72 = 9,821.28/x
  3. Step 3: Cross multiply
    16,390.36x = 24,591.72 × 9,821.28
  4. Step 4: Simplify right side
    16,390.36x = 241,522,167.80
  5. Step 5: Solve for x
    x = 241,522,167.80/16,390.36
  6. Step 6: Final answer
    x = 14,735.62

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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.