Home / 13,747.22-18,960.30-9,499.85

Finding the Fourth Proportional to 13,747.22, 18,960.30 and 9,499.85

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Solution

The fourth proportional to 13,747.22, 18,960.30 and 9,499.85 is: 13,102.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.22 : 18,960.30 = 9,499.85 : x
  2. Step 2: Convert to fraction form
    13,747.22/18,960.30 = 9,499.85/x
  3. Step 3: Cross multiply
    13,747.22x = 18,960.30 × 9,499.85
  4. Step 4: Simplify right side
    13,747.22x = 180,119,911.15
  5. Step 5: Solve for x
    x = 180,119,911.15/13,747.22
  6. Step 6: Final answer
    x = 13,102.28

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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.