Home / 13,096.31-19,644.68-12,431.71

Finding the Fourth Proportional to 13,096.31, 19,644.68 and 12,431.71

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Solution

The fourth proportional to 13,096.31, 19,644.68 and 12,431.71 is: 18,647.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,096.31 : 19,644.68 = 12,431.71 : x
  2. Step 2: Convert to fraction form
    13,096.31/19,644.68 = 12,431.71/x
  3. Step 3: Cross multiply
    13,096.31x = 19,644.68 × 12,431.71
  4. Step 4: Simplify right side
    13,096.31x = 244,216,964.80
  5. Step 5: Solve for x
    x = 244,216,964.80/13,096.31
  6. Step 6: Final answer
    x = 18,647.77

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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.