Home / 11,698.68-16,143.60-6,392.48

Finding the Fourth Proportional to 11,698.68, 16,143.60 and 6,392.48

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Solution

The fourth proportional to 11,698.68, 16,143.60 and 6,392.48 is: 8,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.68 : 16,143.60 = 6,392.48 : x
  2. Step 2: Convert to fraction form
    11,698.68/16,143.60 = 6,392.48/x
  3. Step 3: Cross multiply
    11,698.68x = 16,143.60 × 6,392.48
  4. Step 4: Simplify right side
    11,698.68x = 103,197,640.13
  5. Step 5: Solve for x
    x = 103,197,640.13/11,698.68
  6. Step 6: Final answer
    x = 8,821.31

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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.