Home / 12,017.70-18,026.83-4,120.15

Finding the Fourth Proportional to 12,017.70, 18,026.83 and 4,120.15

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Solution

The fourth proportional to 12,017.70, 18,026.83 and 4,120.15 is: 6,180.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,017.70 : 18,026.83 = 4,120.15 : x
  2. Step 2: Convert to fraction form
    12,017.70/18,026.83 = 4,120.15/x
  3. Step 3: Cross multiply
    12,017.70x = 18,026.83 × 4,120.15
  4. Step 4: Simplify right side
    12,017.70x = 74,273,243.62
  5. Step 5: Solve for x
    x = 74,273,243.62/12,017.70
  6. Step 6: Final answer
    x = 6,180.32

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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.