Home / 13,931.56-19,227.27-8,631.73

Finding the Fourth Proportional to 13,931.56, 19,227.27 and 8,631.73

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Solution

The fourth proportional to 13,931.56, 19,227.27 and 8,631.73 is: 11,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.56 : 19,227.27 = 8,631.73 : x
  2. Step 2: Convert to fraction form
    13,931.56/19,227.27 = 8,631.73/x
  3. Step 3: Cross multiply
    13,931.56x = 19,227.27 × 8,631.73
  4. Step 4: Simplify right side
    13,931.56x = 165,964,603.28
  5. Step 5: Solve for x
    x = 165,964,603.28/13,931.56
  6. Step 6: Final answer
    x = 11,912.85

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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.