Home / 12,579.29-17,332.04-9,391.33

Finding the Fourth Proportional to 12,579.29, 17,332.04 and 9,391.33

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Solution

The fourth proportional to 12,579.29, 17,332.04 and 9,391.33 is: 12,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.29 : 17,332.04 = 9,391.33 : x
  2. Step 2: Convert to fraction form
    12,579.29/17,332.04 = 9,391.33/x
  3. Step 3: Cross multiply
    12,579.29x = 17,332.04 × 9,391.33
  4. Step 4: Simplify right side
    12,579.29x = 162,770,907.21
  5. Step 5: Solve for x
    x = 162,770,907.21/12,579.29
  6. Step 6: Final answer
    x = 12,939.59

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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.