Home / 12,172.45-18,258.48-6,245.91

Finding the Fourth Proportional to 12,172.45, 18,258.48 and 6,245.91

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Solution

The fourth proportional to 12,172.45, 18,258.48 and 6,245.91 is: 9,368.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.45 : 18,258.48 = 6,245.91 : x
  2. Step 2: Convert to fraction form
    12,172.45/18,258.48 = 6,245.91/x
  3. Step 3: Cross multiply
    12,172.45x = 18,258.48 × 6,245.91
  4. Step 4: Simplify right side
    12,172.45x = 114,040,874.00
  5. Step 5: Solve for x
    x = 114,040,874.00/12,172.45
  6. Step 6: Final answer
    x = 9,368.77

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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.