Home / 13,694.57-20,531.10-5,790.62

Finding the Fourth Proportional to 13,694.57, 20,531.10 and 5,790.62

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Solution

The fourth proportional to 13,694.57, 20,531.10 and 5,790.62 is: 8,681.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,694.57 : 20,531.10 = 5,790.62 : x
  2. Step 2: Convert to fraction form
    13,694.57/20,531.10 = 5,790.62/x
  3. Step 3: Cross multiply
    13,694.57x = 20,531.10 × 5,790.62
  4. Step 4: Simplify right side
    13,694.57x = 118,887,871.32
  5. Step 5: Solve for x
    x = 118,887,871.32/13,694.57
  6. Step 6: Final answer
    x = 8,681.39

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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.