Home / 11,785.80-16,264.55-6,408.30

Finding the Fourth Proportional to 11,785.80, 16,264.55 and 6,408.30

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Solution

The fourth proportional to 11,785.80, 16,264.55 and 6,408.30 is: 8,843.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,785.80 : 16,264.55 = 6,408.30 : x
  2. Step 2: Convert to fraction form
    11,785.80/16,264.55 = 6,408.30/x
  3. Step 3: Cross multiply
    11,785.80x = 16,264.55 × 6,408.30
  4. Step 4: Simplify right side
    11,785.80x = 104,228,131.79
  5. Step 5: Solve for x
    x = 104,228,131.79/11,785.80
  6. Step 6: Final answer
    x = 8,843.53

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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.