Home / 13,583.85-20,398.41-9,169.98

Finding the Fourth Proportional to 13,583.85, 20,398.41 and 9,169.98

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Solution

The fourth proportional to 13,583.85, 20,398.41 and 9,169.98 is: 13,770.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,583.85 : 20,398.41 = 9,169.98 : x
  2. Step 2: Convert to fraction form
    13,583.85/20,398.41 = 9,169.98/x
  3. Step 3: Cross multiply
    13,583.85x = 20,398.41 × 9,169.98
  4. Step 4: Simplify right side
    13,583.85x = 187,053,011.73
  5. Step 5: Solve for x
    x = 187,053,011.73/13,583.85
  6. Step 6: Final answer
    x = 13,770.25

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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.