Home / 12,091.36-16,690.80-11,758.48

Finding the Fourth Proportional to 12,091.36, 16,690.80 and 11,758.48

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Solution

The fourth proportional to 12,091.36, 16,690.80 and 11,758.48 is: 16,231.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,091.36 : 16,690.80 = 11,758.48 : x
  2. Step 2: Convert to fraction form
    12,091.36/16,690.80 = 11,758.48/x
  3. Step 3: Cross multiply
    12,091.36x = 16,690.80 × 11,758.48
  4. Step 4: Simplify right side
    12,091.36x = 196,258,437.98
  5. Step 5: Solve for x
    x = 196,258,437.98/12,091.36
  6. Step 6: Final answer
    x = 16,231.30

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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.