Home / 13,015.82-17,961.80-7,047.48

Finding the Fourth Proportional to 13,015.82, 17,961.80 and 7,047.48

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Solution

The fourth proportional to 13,015.82, 17,961.80 and 7,047.48 is: 9,725.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.82 : 17,961.80 = 7,047.48 : x
  2. Step 2: Convert to fraction form
    13,015.82/17,961.80 = 7,047.48/x
  3. Step 3: Cross multiply
    13,015.82x = 17,961.80 × 7,047.48
  4. Step 4: Simplify right side
    13,015.82x = 126,585,426.26
  5. Step 5: Solve for x
    x = 126,585,426.26/13,015.82
  6. Step 6: Final answer
    x = 9,725.51

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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.