Home / 11,678.45-17,434.49-11,268.36

Finding the Fourth Proportional to 11,678.45, 17,434.49 and 11,268.36

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Solution

The fourth proportional to 11,678.45, 17,434.49 and 11,268.36 is: 16,822.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,678.45 : 17,434.49 = 11,268.36 : x
  2. Step 2: Convert to fraction form
    11,678.45/17,434.49 = 11,268.36/x
  3. Step 3: Cross multiply
    11,678.45x = 17,434.49 × 11,268.36
  4. Step 4: Simplify right side
    11,678.45x = 196,458,053.39
  5. Step 5: Solve for x
    x = 196,458,053.39/11,678.45
  6. Step 6: Final answer
    x = 16,822.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.