Home / 13,015.68-17,961.63-7,047.33

Finding the Fourth Proportional to 13,015.68, 17,961.63 and 7,047.33

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Solution

The fourth proportional to 13,015.68, 17,961.63 and 7,047.33 is: 9,725.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.68 : 17,961.63 = 7,047.33 : x
  2. Step 2: Convert to fraction form
    13,015.68/17,961.63 = 7,047.33/x
  3. Step 3: Cross multiply
    13,015.68x = 17,961.63 × 7,047.33
  4. Step 4: Simplify right side
    13,015.68x = 126,581,533.95
  5. Step 5: Solve for x
    x = 126,581,533.95/13,015.68
  6. Step 6: Final answer
    x = 9,725.31

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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.