Home / 13,551.30-20,336.67-5,765.58

Finding the Fourth Proportional to 13,551.30, 20,336.67 and 5,765.58

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Solution

The fourth proportional to 13,551.30, 20,336.67 and 5,765.58 is: 8,652.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.30 : 20,336.67 = 5,765.58 : x
  2. Step 2: Convert to fraction form
    13,551.30/20,336.67 = 5,765.58/x
  3. Step 3: Cross multiply
    13,551.30x = 20,336.67 × 5,765.58
  4. Step 4: Simplify right side
    13,551.30x = 117,252,697.82
  5. Step 5: Solve for x
    x = 117,252,697.82/13,551.30
  6. Step 6: Final answer
    x = 8,652.51

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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.