Home / 11,861.67-16,350.26-9,339.78

Finding the Fourth Proportional to 11,861.67, 16,350.26 and 9,339.78

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Solution

The fourth proportional to 11,861.67, 16,350.26 and 9,339.78 is: 12,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,861.67 : 16,350.26 = 9,339.78 : x
  2. Step 2: Convert to fraction form
    11,861.67/16,350.26 = 9,339.78/x
  3. Step 3: Cross multiply
    11,861.67x = 16,350.26 × 9,339.78
  4. Step 4: Simplify right side
    11,861.67x = 152,707,784.64
  5. Step 5: Solve for x
    x = 152,707,784.64/11,861.67
  6. Step 6: Final answer
    x = 12,874.05

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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.