Home / 12,117.96-18,177.18-3,353.16

Finding the Fourth Proportional to 12,117.96, 18,177.18 and 3,353.16

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Solution

The fourth proportional to 12,117.96, 18,177.18 and 3,353.16 is: 5,029.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.96 : 18,177.18 = 3,353.16 : x
  2. Step 2: Convert to fraction form
    12,117.96/18,177.18 = 3,353.16/x
  3. Step 3: Cross multiply
    12,117.96x = 18,177.18 × 3,353.16
  4. Step 4: Simplify right side
    12,117.96x = 60,950,992.89
  5. Step 5: Solve for x
    x = 60,950,992.89/12,117.96
  6. Step 6: Final answer
    x = 5,029.81

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1.5x scale

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.