Home / 13,693.25-20,537.15-4,331.68

Finding the Fourth Proportional to 13,693.25, 20,537.15 and 4,331.68

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Solution

The fourth proportional to 13,693.25, 20,537.15 and 4,331.68 is: 6,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.25 : 20,537.15 = 4,331.68 : x
  2. Step 2: Convert to fraction form
    13,693.25/20,537.15 = 4,331.68/x
  3. Step 3: Cross multiply
    13,693.25x = 20,537.15 × 4,331.68
  4. Step 4: Simplify right side
    13,693.25x = 88,960,288.91
  5. Step 5: Solve for x
    x = 88,960,288.91/13,693.25
  6. Step 6: Final answer
    x = 6,496.65

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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.