Home / 12,074.45-18,111.57-3,754.45

Finding the Fourth Proportional to 12,074.45, 18,111.57 and 3,754.45

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Solution

The fourth proportional to 12,074.45, 18,111.57 and 3,754.45 is: 5,631.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.45 : 18,111.57 = 3,754.45 : x
  2. Step 2: Convert to fraction form
    12,074.45/18,111.57 = 3,754.45/x
  3. Step 3: Cross multiply
    12,074.45x = 18,111.57 × 3,754.45
  4. Step 4: Simplify right side
    12,074.45x = 67,998,874.66
  5. Step 5: Solve for x
    x = 67,998,874.66/12,074.45
  6. Step 6: Final answer
    x = 5,631.64

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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.