Home / 13,976.85-20,880.27-9,996.51

Finding the Fourth Proportional to 13,976.85, 20,880.27 and 9,996.51

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Solution

The fourth proportional to 13,976.85, 20,880.27 and 9,996.51 is: 14,933.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,976.85 : 20,880.27 = 9,996.51 : x
  2. Step 2: Convert to fraction form
    13,976.85/20,880.27 = 9,996.51/x
  3. Step 3: Cross multiply
    13,976.85x = 20,880.27 × 9,996.51
  4. Step 4: Simplify right side
    13,976.85x = 208,729,827.86
  5. Step 5: Solve for x
    x = 208,729,827.86/13,976.85
  6. Step 6: Final answer
    x = 14,933.97

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.