Home / 12,125.32-16,741.22-8,939

Finding the Fourth Proportional to 12,125.32, 16,741.22 and 8,939

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Solution

The fourth proportional to 12,125.32, 16,741.22 and 8,939 is: 12,341.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,125.32 : 16,741.22 = 8,939 : x
  2. Step 2: Convert to fraction form
    12,125.32/16,741.22 = 8,939/x
  3. Step 3: Cross multiply
    12,125.32x = 16,741.22 × 8,939
  4. Step 4: Simplify right side
    12,125.32x = 149,649,765.58
  5. Step 5: Solve for x
    x = 149,649,765.58/12,125.32
  6. Step 6: Final answer
    x = 12,341.92

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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.