Home / 12,069.38-18,105.90-4,276.38

Finding the Fourth Proportional to 12,069.38, 18,105.90 and 4,276.38

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Solution

The fourth proportional to 12,069.38, 18,105.90 and 4,276.38 is: 6,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.38 : 18,105.90 = 4,276.38 : x
  2. Step 2: Convert to fraction form
    12,069.38/18,105.90 = 4,276.38/x
  3. Step 3: Cross multiply
    12,069.38x = 18,105.90 × 4,276.38
  4. Step 4: Simplify right side
    12,069.38x = 77,427,708.64
  5. Step 5: Solve for x
    x = 77,427,708.64/12,069.38
  6. Step 6: Final answer
    x = 6,415.22

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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.