Home / 13,829.98-20,753.58-5,621.98

Finding the Fourth Proportional to 13,829.98, 20,753.58 and 5,621.98

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Solution

The fourth proportional to 13,829.98, 20,753.58 and 5,621.98 is: 8,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.98 : 20,753.58 = 5,621.98 : x
  2. Step 2: Convert to fraction form
    13,829.98/20,753.58 = 5,621.98/x
  3. Step 3: Cross multiply
    13,829.98x = 20,753.58 × 5,621.98
  4. Step 4: Simplify right side
    13,829.98x = 116,676,211.69
  5. Step 5: Solve for x
    x = 116,676,211.69/13,829.98
  6. Step 6: Final answer
    x = 8,436.47

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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.