Home / 13,336.90-20,006.49-3,976.32

Finding the Fourth Proportional to 13,336.90, 20,006.49 and 3,976.32

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Solution

The fourth proportional to 13,336.90, 20,006.49 and 3,976.32 is: 5,964.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,336.90 : 20,006.49 = 3,976.32 : x
  2. Step 2: Convert to fraction form
    13,336.90/20,006.49 = 3,976.32/x
  3. Step 3: Cross multiply
    13,336.90x = 20,006.49 × 3,976.32
  4. Step 4: Simplify right side
    13,336.90x = 79,552,127.45
  5. Step 5: Solve for x
    x = 79,552,127.45/13,336.90
  6. Step 6: Final answer
    x = 5,964.81

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1.5x scale

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.