Home / 12,465.75-17,201.39-7,161.33

Finding the Fourth Proportional to 12,465.75, 17,201.39 and 7,161.33

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Solution

The fourth proportional to 12,465.75, 17,201.39 and 7,161.33 is: 9,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.75 : 17,201.39 = 7,161.33 : x
  2. Step 2: Convert to fraction form
    12,465.75/17,201.39 = 7,161.33/x
  3. Step 3: Cross multiply
    12,465.75x = 17,201.39 × 7,161.33
  4. Step 4: Simplify right side
    12,465.75x = 123,184,794.44
  5. Step 5: Solve for x
    x = 123,184,794.44/12,465.75
  6. Step 6: Final answer
    x = 9,881.86

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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.