Home / 11,133.75-15,366-6,418.07

Finding the Fourth Proportional to 11,133.75, 15,366 and 6,418.07

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Solution

The fourth proportional to 11,133.75, 15,366 and 6,418.07 is: 8,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.75 : 15,366 = 6,418.07 : x
  2. Step 2: Convert to fraction form
    11,133.75/15,366 = 6,418.07/x
  3. Step 3: Cross multiply
    11,133.75x = 15,366 × 6,418.07
  4. Step 4: Simplify right side
    11,133.75x = 98,620,063.62
  5. Step 5: Solve for x
    x = 98,620,063.62/11,133.75
  6. Step 6: Final answer
    x = 8,857.76

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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.