Home / 11,639.12-16,049.58-8,650.04

Finding the Fourth Proportional to 11,639.12, 16,049.58 and 8,650.04

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Solution

The fourth proportional to 11,639.12, 16,049.58 and 8,650.04 is: 11,927.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.12 : 16,049.58 = 8,650.04 : x
  2. Step 2: Convert to fraction form
    11,639.12/16,049.58 = 8,650.04/x
  3. Step 3: Cross multiply
    11,639.12x = 16,049.58 × 8,650.04
  4. Step 4: Simplify right side
    11,639.12x = 138,829,508.98
  5. Step 5: Solve for x
    x = 138,829,508.98/11,639.12
  6. Step 6: Final answer
    x = 11,927.84

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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.