Home / 13,509.99-20,265.05-4,149.90

Finding the Fourth Proportional to 13,509.99, 20,265.05 and 4,149.90

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Solution

The fourth proportional to 13,509.99, 20,265.05 and 4,149.90 is: 6,224.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.99 : 20,265.05 = 4,149.90 : x
  2. Step 2: Convert to fraction form
    13,509.99/20,265.05 = 4,149.90/x
  3. Step 3: Cross multiply
    13,509.99x = 20,265.05 × 4,149.90
  4. Step 4: Simplify right side
    13,509.99x = 84,097,931.00
  5. Step 5: Solve for x
    x = 84,097,931.00/13,509.99
  6. Step 6: Final answer
    x = 6,224.87

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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.