Home / 13,176.11-18,183.08-7,207.87

Finding the Fourth Proportional to 13,176.11, 18,183.08 and 7,207.87

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Solution

The fourth proportional to 13,176.11, 18,183.08 and 7,207.87 is: 9,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.11 : 18,183.08 = 7,207.87 : x
  2. Step 2: Convert to fraction form
    13,176.11/18,183.08 = 7,207.87/x
  3. Step 3: Cross multiply
    13,176.11x = 18,183.08 × 7,207.87
  4. Step 4: Simplify right side
    13,176.11x = 131,061,360.20
  5. Step 5: Solve for x
    x = 131,061,360.20/13,176.11
  6. Step 6: Final answer
    x = 9,946.90

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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.