Home / 11,118.60-16,659.36-7,824.76

Finding the Fourth Proportional to 11,118.60, 16,659.36 and 7,824.76

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Solution

The fourth proportional to 11,118.60, 16,659.36 and 7,824.76 is: 11,724.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.60 : 16,659.36 = 7,824.76 : x
  2. Step 2: Convert to fraction form
    11,118.60/16,659.36 = 7,824.76/x
  3. Step 3: Cross multiply
    11,118.60x = 16,659.36 × 7,824.76
  4. Step 4: Simplify right side
    11,118.60x = 130,355,493.75
  5. Step 5: Solve for x
    x = 130,355,493.75/11,118.60
  6. Step 6: Final answer
    x = 11,724.09

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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.