Home / 13,940.55-19,226.70-12,258.45

Finding the Fourth Proportional to 13,940.55, 19,226.70 and 12,258.45

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Solution

The fourth proportional to 13,940.55, 19,226.70 and 12,258.45 is: 16,906.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.55 : 19,226.70 = 12,258.45 : x
  2. Step 2: Convert to fraction form
    13,940.55/19,226.70 = 12,258.45/x
  3. Step 3: Cross multiply
    13,940.55x = 19,226.70 × 12,258.45
  4. Step 4: Simplify right side
    13,940.55x = 235,689,540.62
  5. Step 5: Solve for x
    x = 235,689,540.62/13,940.55
  6. Step 6: Final answer
    x = 16,906.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.