Home / 13,930.56-19,233.18-8,631

Finding the Fourth Proportional to 13,930.56, 19,233.18 and 8,631

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Solution

The fourth proportional to 13,930.56, 19,233.18 and 8,631 is: 11,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,930.56 : 19,233.18 = 8,631 : x
  2. Step 2: Convert to fraction form
    13,930.56/19,233.18 = 8,631/x
  3. Step 3: Cross multiply
    13,930.56x = 19,233.18 × 8,631
  4. Step 4: Simplify right side
    13,930.56x = 166,001,576.58
  5. Step 5: Solve for x
    x = 166,001,576.58/13,930.56
  6. Step 6: Final answer
    x = 11,916.36

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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.