Home / 13,818.67-20,728.00-5,048.80

Finding the Fourth Proportional to 13,818.67, 20,728.00 and 5,048.80

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Solution

The fourth proportional to 13,818.67, 20,728.00 and 5,048.80 is: 7,573.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,818.67 : 20,728.00 = 5,048.80 : x
  2. Step 2: Convert to fraction form
    13,818.67/20,728.00 = 5,048.80/x
  3. Step 3: Cross multiply
    13,818.67x = 20,728.00 × 5,048.80
  4. Step 4: Simplify right side
    13,818.67x = 104,651,480.89
  5. Step 5: Solve for x
    x = 104,651,480.89/13,818.67
  6. Step 6: Final answer
    x = 7,573.20

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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.