Home / 11,821.25-16,336.85-9,693.48

Finding the Fourth Proportional to 11,821.25, 16,336.85 and 9,693.48

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Solution

The fourth proportional to 11,821.25, 16,336.85 and 9,693.48 is: 13,396.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.25 : 16,336.85 = 9,693.48 : x
  2. Step 2: Convert to fraction form
    11,821.25/16,336.85 = 9,693.48/x
  3. Step 3: Cross multiply
    11,821.25x = 16,336.85 × 9,693.48
  4. Step 4: Simplify right side
    11,821.25x = 158,360,880.27
  5. Step 5: Solve for x
    x = 158,360,880.27/11,821.25
  6. Step 6: Final answer
    x = 13,396.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.