Home / 11,238.60-16,857.90-5,989.80

Finding the Fourth Proportional to 11,238.60, 16,857.90 and 5,989.80

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Solution

The fourth proportional to 11,238.60, 16,857.90 and 5,989.80 is: 8,984.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.60 : 16,857.90 = 5,989.80 : x
  2. Step 2: Convert to fraction form
    11,238.60/16,857.90 = 5,989.80/x
  3. Step 3: Cross multiply
    11,238.60x = 16,857.90 × 5,989.80
  4. Step 4: Simplify right side
    11,238.60x = 100,975,449.42
  5. Step 5: Solve for x
    x = 100,975,449.42/11,238.60
  6. Step 6: Final answer
    x = 8,984.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.