Home / 13,257.24-19,891.38-4,487.40

Finding the Fourth Proportional to 13,257.24, 19,891.38 and 4,487.40

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Solution

The fourth proportional to 13,257.24, 19,891.38 and 4,487.40 is: 6,732.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.24 : 19,891.38 = 4,487.40 : x
  2. Step 2: Convert to fraction form
    13,257.24/19,891.38 = 4,487.40/x
  3. Step 3: Cross multiply
    13,257.24x = 19,891.38 × 4,487.40
  4. Step 4: Simplify right side
    13,257.24x = 89,260,578.61
  5. Step 5: Solve for x
    x = 89,260,578.61/13,257.24
  6. Step 6: Final answer
    x = 6,732.97

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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.