Home / 13,868.03-20,800-4,508.90

Finding the Fourth Proportional to 13,868.03, 20,800 and 4,508.90

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Solution

The fourth proportional to 13,868.03, 20,800 and 4,508.90 is: 6,762.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,868.03 : 20,800 = 4,508.90 : x
  2. Step 2: Convert to fraction form
    13,868.03/20,800 = 4,508.90/x
  3. Step 3: Cross multiply
    13,868.03x = 20,800 × 4,508.90
  4. Step 4: Simplify right side
    13,868.03x = 93,785,120.00
  5. Step 5: Solve for x
    x = 93,785,120.00/13,868.03
  6. Step 6: Final answer
    x = 6,762.69

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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.