Home / 11,971.76-16,519.36-6,665.84

Finding the Fourth Proportional to 11,971.76, 16,519.36 and 6,665.84

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Solution

The fourth proportional to 11,971.76, 16,519.36 and 6,665.84 is: 9,197.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.76 : 16,519.36 = 6,665.84 : x
  2. Step 2: Convert to fraction form
    11,971.76/16,519.36 = 6,665.84/x
  3. Step 3: Cross multiply
    11,971.76x = 16,519.36 × 6,665.84
  4. Step 4: Simplify right side
    11,971.76x = 110,115,410.66
  5. Step 5: Solve for x
    x = 110,115,410.66/11,971.76
  6. Step 6: Final answer
    x = 9,197.93

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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.