Home / 12,119.48-18,179.63-3,353.66

Finding the Fourth Proportional to 12,119.48, 18,179.63 and 3,353.66

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Solution

The fourth proportional to 12,119.48, 18,179.63 and 3,353.66 is: 5,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119.48 : 18,179.63 = 3,353.66 : x
  2. Step 2: Convert to fraction form
    12,119.48/18,179.63 = 3,353.66/x
  3. Step 3: Cross multiply
    12,119.48x = 18,179.63 × 3,353.66
  4. Step 4: Simplify right side
    12,119.48x = 60,968,343.39
  5. Step 5: Solve for x
    x = 60,968,343.39/12,119.48
  6. Step 6: Final answer
    x = 5,030.61

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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.