Home / 12,015.86-18,023.24-4,119.07

Finding the Fourth Proportional to 12,015.86, 18,023.24 and 4,119.07

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Solution

The fourth proportional to 12,015.86, 18,023.24 and 4,119.07 is: 6,178.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.86 : 18,023.24 = 4,119.07 : x
  2. Step 2: Convert to fraction form
    12,015.86/18,023.24 = 4,119.07/x
  3. Step 3: Cross multiply
    12,015.86x = 18,023.24 × 4,119.07
  4. Step 4: Simplify right side
    12,015.86x = 74,238,996.84
  5. Step 5: Solve for x
    x = 74,238,996.84/12,015.86
  6. Step 6: Final answer
    x = 6,178.42

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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.