Home / 13,021.27-17,969.20-7,356.04

Finding the Fourth Proportional to 13,021.27, 17,969.20 and 7,356.04

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Solution

The fourth proportional to 13,021.27, 17,969.20 and 7,356.04 is: 10,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,021.27 : 17,969.20 = 7,356.04 : x
  2. Step 2: Convert to fraction form
    13,021.27/17,969.20 = 7,356.04/x
  3. Step 3: Cross multiply
    13,021.27x = 17,969.20 × 7,356.04
  4. Step 4: Simplify right side
    13,021.27x = 132,182,090.65
  5. Step 5: Solve for x
    x = 132,182,090.65/13,021.27
  6. Step 6: Final answer
    x = 10,151.25

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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.