Home / 13,489.55-20,234.51-5,169.98

Finding the Fourth Proportional to 13,489.55, 20,234.51 and 5,169.98

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Solution

The fourth proportional to 13,489.55, 20,234.51 and 5,169.98 is: 7,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.55 : 20,234.51 = 5,169.98 : x
  2. Step 2: Convert to fraction form
    13,489.55/20,234.51 = 5,169.98/x
  3. Step 3: Cross multiply
    13,489.55x = 20,234.51 × 5,169.98
  4. Step 4: Simplify right side
    13,489.55x = 104,612,075.52
  5. Step 5: Solve for x
    x = 104,612,075.52/13,489.55
  6. Step 6: Final answer
    x = 7,755.05

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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.