Home / 13,820.85-20,735.66-4,935.98

Finding the Fourth Proportional to 13,820.85, 20,735.66 and 4,935.98

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Solution

The fourth proportional to 13,820.85, 20,735.66 and 4,935.98 is: 7,405.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.85 : 20,735.66 = 4,935.98 : x
  2. Step 2: Convert to fraction form
    13,820.85/20,735.66 = 4,935.98/x
  3. Step 3: Cross multiply
    13,820.85x = 20,735.66 × 4,935.98
  4. Step 4: Simplify right side
    13,820.85x = 102,350,674.69
  5. Step 5: Solve for x
    x = 102,350,674.69/13,820.85
  6. Step 6: Final answer
    x = 7,405.53

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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.