Home / 11,270.10-16,905.15-5,427.30

Finding the Fourth Proportional to 11,270.10, 16,905.15 and 5,427.30

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Solution

The fourth proportional to 11,270.10, 16,905.15 and 5,427.30 is: 8,140.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,270.10 : 16,905.15 = 5,427.30 : x
  2. Step 2: Convert to fraction form
    11,270.10/16,905.15 = 5,427.30/x
  3. Step 3: Cross multiply
    11,270.10x = 16,905.15 × 5,427.30
  4. Step 4: Simplify right side
    11,270.10x = 91,749,320.60
  5. Step 5: Solve for x
    x = 91,749,320.60/11,270.10
  6. Step 6: Final answer
    x = 8,140.95

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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.