Home / 9,512.73-13,128.39-5,979.51

Finding the Fourth Proportional to 9,512.73, 13,128.39 and 5,979.51

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Solution

The fourth proportional to 9,512.73, 13,128.39 and 5,979.51 is: 8,252.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,512.73 : 13,128.39 = 5,979.51 : x
  2. Step 2: Convert to fraction form
    9,512.73/13,128.39 = 5,979.51/x
  3. Step 3: Cross multiply
    9,512.73x = 13,128.39 × 5,979.51
  4. Step 4: Simplify right side
    9,512.73x = 78,501,339.29
  5. Step 5: Solve for x
    x = 78,501,339.29/9,512.73
  6. Step 6: Final answer
    x = 8,252.24

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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.