Home / 13,034.25-17,979.30-7,725.51

Finding the Fourth Proportional to 13,034.25, 17,979.30 and 7,725.51

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Solution

The fourth proportional to 13,034.25, 17,979.30 and 7,725.51 is: 10,656.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,034.25 : 17,979.30 = 7,725.51 : x
  2. Step 2: Convert to fraction form
    13,034.25/17,979.30 = 7,725.51/x
  3. Step 3: Cross multiply
    13,034.25x = 17,979.30 × 7,725.51
  4. Step 4: Simplify right side
    13,034.25x = 138,899,261.94
  5. Step 5: Solve for x
    x = 138,899,261.94/13,034.25
  6. Step 6: Final answer
    x = 10,656.48

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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.