Home / 13,599.47-20,379.77-7,743.98

Finding the Fourth Proportional to 13,599.47, 20,379.77 and 7,743.98

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Solution

The fourth proportional to 13,599.47, 20,379.77 and 7,743.98 is: 11,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.47 : 20,379.77 = 7,743.98 : x
  2. Step 2: Convert to fraction form
    13,599.47/20,379.77 = 7,743.98/x
  3. Step 3: Cross multiply
    13,599.47x = 20,379.77 × 7,743.98
  4. Step 4: Simplify right side
    13,599.47x = 157,820,572.55
  5. Step 5: Solve for x
    x = 157,820,572.55/13,599.47
  6. Step 6: Final answer
    x = 11,604.90

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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.