Home / 12,016.42-18,027.43-4,118.99

Finding the Fourth Proportional to 12,016.42, 18,027.43 and 4,118.99

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Solution

The fourth proportional to 12,016.42, 18,027.43 and 4,118.99 is: 6,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,016.42 : 18,027.43 = 4,118.99 : x
  2. Step 2: Convert to fraction form
    12,016.42/18,027.43 = 4,118.99/x
  3. Step 3: Cross multiply
    12,016.42x = 18,027.43 × 4,118.99
  4. Step 4: Simplify right side
    12,016.42x = 74,254,703.46
  5. Step 5: Solve for x
    x = 74,254,703.46/12,016.42
  6. Step 6: Final answer
    x = 6,179.44

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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.