Home / 12,093.80-18,118.30-6,884.20

Finding the Fourth Proportional to 12,093.80, 18,118.30 and 6,884.20

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Solution

The fourth proportional to 12,093.80, 18,118.30 and 6,884.20 is: 10,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,093.80 : 18,118.30 = 6,884.20 : x
  2. Step 2: Convert to fraction form
    12,093.80/18,118.30 = 6,884.20/x
  3. Step 3: Cross multiply
    12,093.80x = 18,118.30 × 6,884.20
  4. Step 4: Simplify right side
    12,093.80x = 124,730,000.86
  5. Step 5: Solve for x
    x = 124,730,000.86/12,093.80
  6. Step 6: Final answer
    x = 10,313.55

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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.