Home / 11,325.60-16,979.52-5,480.64

Finding the Fourth Proportional to 11,325.60, 16,979.52 and 5,480.64

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Solution

The fourth proportional to 11,325.60, 16,979.52 and 5,480.64 is: 8,216.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,325.60 : 16,979.52 = 5,480.64 : x
  2. Step 2: Convert to fraction form
    11,325.60/16,979.52 = 5,480.64/x
  3. Step 3: Cross multiply
    11,325.60x = 16,979.52 × 5,480.64
  4. Step 4: Simplify right side
    11,325.60x = 93,058,636.49
  5. Step 5: Solve for x
    x = 93,058,636.49/11,325.60
  6. Step 6: Final answer
    x = 8,216.66

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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.