Home / 11,820.36-16,310.34-6,784.77

Finding the Fourth Proportional to 11,820.36, 16,310.34 and 6,784.77

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Solution

The fourth proportional to 11,820.36, 16,310.34 and 6,784.77 is: 9,361.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.36 : 16,310.34 = 6,784.77 : x
  2. Step 2: Convert to fraction form
    11,820.36/16,310.34 = 6,784.77/x
  3. Step 3: Cross multiply
    11,820.36x = 16,310.34 × 6,784.77
  4. Step 4: Simplify right side
    11,820.36x = 110,661,905.52
  5. Step 5: Solve for x
    x = 110,661,905.52/11,820.36
  6. Step 6: Final answer
    x = 9,361.97

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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.