Home / 12,172.92-18,252.34-4,768.72

Finding the Fourth Proportional to 12,172.92, 18,252.34 and 4,768.72

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Solution

The fourth proportional to 12,172.92, 18,252.34 and 4,768.72 is: 7,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.92 : 18,252.34 = 4,768.72 : x
  2. Step 2: Convert to fraction form
    12,172.92/18,252.34 = 4,768.72/x
  3. Step 3: Cross multiply
    12,172.92x = 18,252.34 × 4,768.72
  4. Step 4: Simplify right side
    12,172.92x = 87,040,298.80
  5. Step 5: Solve for x
    x = 87,040,298.80/12,172.92
  6. Step 6: Final answer
    x = 7,150.32

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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.