Home / 11,942.10-16,479.18-6,636.60

Finding the Fourth Proportional to 11,942.10, 16,479.18 and 6,636.60

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Solution

The fourth proportional to 11,942.10, 16,479.18 and 6,636.60 is: 9,158.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,942.10 : 16,479.18 = 6,636.60 : x
  2. Step 2: Convert to fraction form
    11,942.10/16,479.18 = 6,636.60/x
  3. Step 3: Cross multiply
    11,942.10x = 16,479.18 × 6,636.60
  4. Step 4: Simplify right side
    11,942.10x = 109,365,725.99
  5. Step 5: Solve for x
    x = 109,365,725.99/11,942.10
  6. Step 6: Final answer
    x = 9,158.00

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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.