Home / 13,718.13-18,930.04-7,975.03

Finding the Fourth Proportional to 13,718.13, 18,930.04 and 7,975.03

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Solution

The fourth proportional to 13,718.13, 18,930.04 and 7,975.03 is: 11,004.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.13 : 18,930.04 = 7,975.03 : x
  2. Step 2: Convert to fraction form
    13,718.13/18,930.04 = 7,975.03/x
  3. Step 3: Cross multiply
    13,718.13x = 18,930.04 × 7,975.03
  4. Step 4: Simplify right side
    13,718.13x = 150,967,599.54
  5. Step 5: Solve for x
    x = 150,967,599.54/13,718.13
  6. Step 6: Final answer
    x = 11,004.97

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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.