Home / 11,231.60-16,847.80-3,440.40

Finding the Fourth Proportional to 11,231.60, 16,847.80 and 3,440.40

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Solution

The fourth proportional to 11,231.60, 16,847.80 and 3,440.40 is: 5,160.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.60 : 16,847.80 = 3,440.40 : x
  2. Step 2: Convert to fraction form
    11,231.60/16,847.80 = 3,440.40/x
  3. Step 3: Cross multiply
    11,231.60x = 16,847.80 × 3,440.40
  4. Step 4: Simplify right side
    11,231.60x = 57,963,171.12
  5. Step 5: Solve for x
    x = 57,963,171.12/11,231.60
  6. Step 6: Final answer
    x = 5,160.72

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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.