Home / 11,187.16-15,434.44-6,936.69

Finding the Fourth Proportional to 11,187.16, 15,434.44 and 6,936.69

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Solution

The fourth proportional to 11,187.16, 15,434.44 and 6,936.69 is: 9,570.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.16 : 15,434.44 = 6,936.69 : x
  2. Step 2: Convert to fraction form
    11,187.16/15,434.44 = 6,936.69/x
  3. Step 3: Cross multiply
    11,187.16x = 15,434.44 × 6,936.69
  4. Step 4: Simplify right side
    11,187.16x = 107,063,940.35
  5. Step 5: Solve for x
    x = 107,063,940.35/11,187.16
  6. Step 6: Final answer
    x = 9,570.25

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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.