Home / 13,015.62-17,961.47-7,047.28

Finding the Fourth Proportional to 13,015.62, 17,961.47 and 7,047.28

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Solution

The fourth proportional to 13,015.62, 17,961.47 and 7,047.28 is: 9,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.62 : 17,961.47 = 7,047.28 : x
  2. Step 2: Convert to fraction form
    13,015.62/17,961.47 = 7,047.28/x
  3. Step 3: Cross multiply
    13,015.62x = 17,961.47 × 7,047.28
  4. Step 4: Simplify right side
    13,015.62x = 126,579,481.02
  5. Step 5: Solve for x
    x = 126,579,481.02/13,015.62
  6. Step 6: Final answer
    x = 9,725.20

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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.