Home / 12,015.68-18,023.51-3,695.63

Finding the Fourth Proportional to 12,015.68, 18,023.51 and 3,695.63

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Solution

The fourth proportional to 12,015.68, 18,023.51 and 3,695.63 is: 5,543.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.68 : 18,023.51 = 3,695.63 : x
  2. Step 2: Convert to fraction form
    12,015.68/18,023.51 = 3,695.63/x
  3. Step 3: Cross multiply
    12,015.68x = 18,023.51 × 3,695.63
  4. Step 4: Simplify right side
    12,015.68x = 66,608,143.38
  5. Step 5: Solve for x
    x = 66,608,143.38/12,015.68
  6. Step 6: Final answer
    x = 5,543.44

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Similar ratio
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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.