Home / 12,168.28-18,252.51-4,270.42

Finding the Fourth Proportional to 12,168.28, 18,252.51 and 4,270.42

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Solution

The fourth proportional to 12,168.28, 18,252.51 and 4,270.42 is: 6,405.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.28 : 18,252.51 = 4,270.42 : x
  2. Step 2: Convert to fraction form
    12,168.28/18,252.51 = 4,270.42/x
  3. Step 3: Cross multiply
    12,168.28x = 18,252.51 × 4,270.42
  4. Step 4: Simplify right side
    12,168.28x = 77,945,883.75
  5. Step 5: Solve for x
    x = 77,945,883.75/12,168.28
  6. Step 6: Final answer
    x = 6,405.66

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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.