Home / 10,861.58-14,989.22-6,145.86

Finding the Fourth Proportional to 10,861.58, 14,989.22 and 6,145.86

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Solution

The fourth proportional to 10,861.58, 14,989.22 and 6,145.86 is: 8,481.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.58 : 14,989.22 = 6,145.86 : x
  2. Step 2: Convert to fraction form
    10,861.58/14,989.22 = 6,145.86/x
  3. Step 3: Cross multiply
    10,861.58x = 14,989.22 × 6,145.86
  4. Step 4: Simplify right side
    10,861.58x = 92,121,673.11
  5. Step 5: Solve for x
    x = 92,121,673.11/10,861.58
  6. Step 6: Final answer
    x = 8,481.42

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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.