Home / 13,898.12-20,851.08-5,583.98

Finding the Fourth Proportional to 13,898.12, 20,851.08 and 5,583.98

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Solution

The fourth proportional to 13,898.12, 20,851.08 and 5,583.98 is: 8,377.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,898.12 : 20,851.08 = 5,583.98 : x
  2. Step 2: Convert to fraction form
    13,898.12/20,851.08 = 5,583.98/x
  3. Step 3: Cross multiply
    13,898.12x = 20,851.08 × 5,583.98
  4. Step 4: Simplify right side
    13,898.12x = 116,431,909.44
  5. Step 5: Solve for x
    x = 116,431,909.44/13,898.12
  6. Step 6: Final answer
    x = 8,377.53

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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.