Home / 13,836.34-20,764.48-5,511.54

Finding the Fourth Proportional to 13,836.34, 20,764.48 and 5,511.54

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Solution

The fourth proportional to 13,836.34, 20,764.48 and 5,511.54 is: 8,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.34 : 20,764.48 = 5,511.54 : x
  2. Step 2: Convert to fraction form
    13,836.34/20,764.48 = 5,511.54/x
  3. Step 3: Cross multiply
    13,836.34x = 20,764.48 × 5,511.54
  4. Step 4: Simplify right side
    13,836.34x = 114,444,248.32
  5. Step 5: Solve for x
    x = 114,444,248.32/13,836.34
  6. Step 6: Final answer
    x = 8,271.28

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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.