Home / 11,910.60-17,844.30-7,288.20

Finding the Fourth Proportional to 11,910.60, 17,844.30 and 7,288.20

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Solution

The fourth proportional to 11,910.60, 17,844.30 and 7,288.20 is: 10,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,910.60 : 17,844.30 = 7,288.20 : x
  2. Step 2: Convert to fraction form
    11,910.60/17,844.30 = 7,288.20/x
  3. Step 3: Cross multiply
    11,910.60x = 17,844.30 × 7,288.20
  4. Step 4: Simplify right side
    11,910.60x = 130,052,827.26
  5. Step 5: Solve for x
    x = 130,052,827.26/11,910.60
  6. Step 6: Final answer
    x = 10,919.08

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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.