Home / 13,055.98-18,016.14-7,390.44

Finding the Fourth Proportional to 13,055.98, 18,016.14 and 7,390.44

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Solution

The fourth proportional to 13,055.98, 18,016.14 and 7,390.44 is: 10,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.98 : 18,016.14 = 7,390.44 : x
  2. Step 2: Convert to fraction form
    13,055.98/18,016.14 = 7,390.44/x
  3. Step 3: Cross multiply
    13,055.98x = 18,016.14 × 7,390.44
  4. Step 4: Simplify right side
    13,055.98x = 133,147,201.70
  5. Step 5: Solve for x
    x = 133,147,201.70/13,055.98
  6. Step 6: Final answer
    x = 10,198.18

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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.