Home / 12,017.42-18,028.93-4,119.99

Finding the Fourth Proportional to 12,017.42, 18,028.93 and 4,119.99

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Solution

The fourth proportional to 12,017.42, 18,028.93 and 4,119.99 is: 6,180.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.42 : 18,028.93 = 4,119.99 : x
  2. Step 2: Convert to fraction form
    12,017.42/18,028.93 = 4,119.99/x
  3. Step 3: Cross multiply
    12,017.42x = 18,028.93 × 4,119.99
  4. Step 4: Simplify right side
    12,017.42x = 74,279,011.31
  5. Step 5: Solve for x
    x = 74,279,011.31/12,017.42
  6. Step 6: Final answer
    x = 6,180.94

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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.