Home / 13,708.56-20,569.88-5,816.48

Finding the Fourth Proportional to 13,708.56, 20,569.88 and 5,816.48

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Solution

The fourth proportional to 13,708.56, 20,569.88 and 5,816.48 is: 8,727.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,708.56 : 20,569.88 = 5,816.48 : x
  2. Step 2: Convert to fraction form
    13,708.56/20,569.88 = 5,816.48/x
  3. Step 3: Cross multiply
    13,708.56x = 20,569.88 × 5,816.48
  4. Step 4: Simplify right side
    13,708.56x = 119,644,295.62
  5. Step 5: Solve for x
    x = 119,644,295.62/13,708.56
  6. Step 6: Final answer
    x = 8,727.71

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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.