Home / 11,917.45-16,412.79-11,659.16

Finding the Fourth Proportional to 11,917.45, 16,412.79 and 11,659.16

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Solution

The fourth proportional to 11,917.45, 16,412.79 and 11,659.16 is: 16,057.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.45 : 16,412.79 = 11,659.16 : x
  2. Step 2: Convert to fraction form
    11,917.45/16,412.79 = 11,659.16/x
  3. Step 3: Cross multiply
    11,917.45x = 16,412.79 × 11,659.16
  4. Step 4: Simplify right side
    11,917.45x = 191,359,344.66
  5. Step 5: Solve for x
    x = 191,359,344.66/11,917.45
  6. Step 6: Final answer
    x = 16,057.07

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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.