Home / 13,348.66-18,420.25-7,379.52

Finding the Fourth Proportional to 13,348.66, 18,420.25 and 7,379.52

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Solution

The fourth proportional to 13,348.66, 18,420.25 and 7,379.52 is: 10,183.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348.66 : 18,420.25 = 7,379.52 : x
  2. Step 2: Convert to fraction form
    13,348.66/18,420.25 = 7,379.52/x
  3. Step 3: Cross multiply
    13,348.66x = 18,420.25 × 7,379.52
  4. Step 4: Simplify right side
    13,348.66x = 135,932,630.88
  5. Step 5: Solve for x
    x = 135,932,630.88/13,348.66
  6. Step 6: Final answer
    x = 10,183.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.