Home / 12,074.68-18,109.95-3,190.11

Finding the Fourth Proportional to 12,074.68, 18,109.95 and 3,190.11

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Solution

The fourth proportional to 12,074.68, 18,109.95 and 3,190.11 is: 4,784.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,074.68 : 18,109.95 = 3,190.11 : x
  2. Step 2: Convert to fraction form
    12,074.68/18,109.95 = 3,190.11/x
  3. Step 3: Cross multiply
    12,074.68x = 18,109.95 × 3,190.11
  4. Step 4: Simplify right side
    12,074.68x = 57,772,652.72
  5. Step 5: Solve for x
    x = 57,772,652.72/12,074.68
  6. Step 6: Final answer
    x = 4,784.61

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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.