Home / 11,248.20-16,869.60-3,455.28

Finding the Fourth Proportional to 11,248.20, 16,869.60 and 3,455.28

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Solution

The fourth proportional to 11,248.20, 16,869.60 and 3,455.28 is: 5,182.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,248.20 : 16,869.60 = 3,455.28 : x
  2. Step 2: Convert to fraction form
    11,248.20/16,869.60 = 3,455.28/x
  3. Step 3: Cross multiply
    11,248.20x = 16,869.60 × 3,455.28
  4. Step 4: Simplify right side
    11,248.20x = 58,289,191.49
  5. Step 5: Solve for x
    x = 58,289,191.49/11,248.20
  6. Step 6: Final answer
    x = 5,182.09

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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.