Home / 13,021.28-17,968.07-7,277.66

Finding the Fourth Proportional to 13,021.28, 17,968.07 and 7,277.66

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Solution

The fourth proportional to 13,021.28, 17,968.07 and 7,277.66 is: 10,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.28 : 17,968.07 = 7,277.66 : x
  2. Step 2: Convert to fraction form
    13,021.28/17,968.07 = 7,277.66/x
  3. Step 3: Cross multiply
    13,021.28x = 17,968.07 × 7,277.66
  4. Step 4: Simplify right side
    13,021.28x = 130,765,378.09
  5. Step 5: Solve for x
    x = 130,765,378.09/13,021.28
  6. Step 6: Final answer
    x = 10,042.44

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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.