Home / 13,712.74-20,576.55-5,819.69

Finding the Fourth Proportional to 13,712.74, 20,576.55 and 5,819.69

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Solution

The fourth proportional to 13,712.74, 20,576.55 and 5,819.69 is: 8,732.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.74 : 20,576.55 = 5,819.69 : x
  2. Step 2: Convert to fraction form
    13,712.74/20,576.55 = 5,819.69/x
  3. Step 3: Cross multiply
    13,712.74x = 20,576.55 × 5,819.69
  4. Step 4: Simplify right side
    13,712.74x = 119,749,219.43
  5. Step 5: Solve for x
    x = 119,749,219.43/13,712.74
  6. Step 6: Final answer
    x = 8,732.70

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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.