Home / 12,117.08-18,176.30-3,351.80

Finding the Fourth Proportional to 12,117.08, 18,176.30 and 3,351.80

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Solution

The fourth proportional to 12,117.08, 18,176.30 and 3,351.80 is: 5,027.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.08 : 18,176.30 = 3,351.80 : x
  2. Step 2: Convert to fraction form
    12,117.08/18,176.30 = 3,351.80/x
  3. Step 3: Cross multiply
    12,117.08x = 18,176.30 × 3,351.80
  4. Step 4: Simplify right side
    12,117.08x = 60,923,322.34
  5. Step 5: Solve for x
    x = 60,923,322.34/12,117.08
  6. Step 6: Final answer
    x = 5,027.89

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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.