Home / 11,956.90-16,500.50-6,651.60

Finding the Fourth Proportional to 11,956.90, 16,500.50 and 6,651.60

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Solution

The fourth proportional to 11,956.90, 16,500.50 and 6,651.60 is: 9,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,956.90 : 16,500.50 = 6,651.60 : x
  2. Step 2: Convert to fraction form
    11,956.90/16,500.50 = 6,651.60/x
  3. Step 3: Cross multiply
    11,956.90x = 16,500.50 × 6,651.60
  4. Step 4: Simplify right side
    11,956.90x = 109,754,725.80
  5. Step 5: Solve for x
    x = 109,754,725.80/11,956.90
  6. Step 6: Final answer
    x = 9,179.20

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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.