Home / 12,091.90-16,686.73-6,786.70

Finding the Fourth Proportional to 12,091.90, 16,686.73 and 6,786.70

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Solution

The fourth proportional to 12,091.90, 16,686.73 and 6,786.70 is: 9,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.90 : 16,686.73 = 6,786.70 : x
  2. Step 2: Convert to fraction form
    12,091.90/16,686.73 = 6,786.70/x
  3. Step 3: Cross multiply
    12,091.90x = 16,686.73 × 6,786.70
  4. Step 4: Simplify right side
    12,091.90x = 113,247,830.49
  5. Step 5: Solve for x
    x = 113,247,830.49/12,091.90
  6. Step 6: Final answer
    x = 9,365.59

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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.