Home / 12,076.60-18,115.03-3,311.52

Finding the Fourth Proportional to 12,076.60, 18,115.03 and 3,311.52

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Solution

The fourth proportional to 12,076.60, 18,115.03 and 3,311.52 is: 4,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,076.60 : 18,115.03 = 3,311.52 : x
  2. Step 2: Convert to fraction form
    12,076.60/18,115.03 = 3,311.52/x
  3. Step 3: Cross multiply
    12,076.60x = 18,115.03 × 3,311.52
  4. Step 4: Simplify right side
    12,076.60x = 59,988,284.15
  5. Step 5: Solve for x
    x = 59,988,284.15/12,076.60
  6. Step 6: Final answer
    x = 4,967.32

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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.