Home / 12,654.96-18,930.60-10,581.36

Finding the Fourth Proportional to 12,654.96, 18,930.60 and 10,581.36

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Solution

The fourth proportional to 12,654.96, 18,930.60 and 10,581.36 is: 15,828.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.96 : 18,930.60 = 10,581.36 : x
  2. Step 2: Convert to fraction form
    12,654.96/18,930.60 = 10,581.36/x
  3. Step 3: Cross multiply
    12,654.96x = 18,930.60 × 10,581.36
  4. Step 4: Simplify right side
    12,654.96x = 200,311,493.62
  5. Step 5: Solve for x
    x = 200,311,493.62/12,654.96
  6. Step 6: Final answer
    x = 15,828.69

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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.