Home / 11,786.36-17,669.61-5,117.84

Finding the Fourth Proportional to 11,786.36, 17,669.61 and 5,117.84

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Solution

The fourth proportional to 11,786.36, 17,669.61 and 5,117.84 is: 7,672.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.36 : 17,669.61 = 5,117.84 : x
  2. Step 2: Convert to fraction form
    11,786.36/17,669.61 = 5,117.84/x
  3. Step 3: Cross multiply
    11,786.36x = 17,669.61 × 5,117.84
  4. Step 4: Simplify right side
    11,786.36x = 90,430,236.84
  5. Step 5: Solve for x
    x = 90,430,236.84/11,786.36
  6. Step 6: Final answer
    x = 7,672.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.