Home / 11,682.56-16,119.36-7,906.32

Finding the Fourth Proportional to 11,682.56, 16,119.36 and 7,906.32

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Solution

The fourth proportional to 11,682.56, 16,119.36 and 7,906.32 is: 10,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.56 : 16,119.36 = 7,906.32 : x
  2. Step 2: Convert to fraction form
    11,682.56/16,119.36 = 7,906.32/x
  3. Step 3: Cross multiply
    11,682.56x = 16,119.36 × 7,906.32
  4. Step 4: Simplify right side
    11,682.56x = 127,444,818.36
  5. Step 5: Solve for x
    x = 127,444,818.36/11,682.56
  6. Step 6: Final answer
    x = 10,908.98

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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.