Home / 13,374.72-18,450.99-8,660.52

Finding the Fourth Proportional to 13,374.72, 18,450.99 and 8,660.52

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Solution

The fourth proportional to 13,374.72, 18,450.99 and 8,660.52 is: 11,947.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,374.72 : 18,450.99 = 8,660.52 : x
  2. Step 2: Convert to fraction form
    13,374.72/18,450.99 = 8,660.52/x
  3. Step 3: Cross multiply
    13,374.72x = 18,450.99 × 8,660.52
  4. Step 4: Simplify right side
    13,374.72x = 159,795,167.91
  5. Step 5: Solve for x
    x = 159,795,167.91/13,374.72
  6. Step 6: Final answer
    x = 11,947.55

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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.