Home / 13,330-18,395.40-7,741.36

Finding the Fourth Proportional to 13,330, 18,395.40 and 7,741.36

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Solution

The fourth proportional to 13,330, 18,395.40 and 7,741.36 is: 10,683.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330 : 18,395.40 = 7,741.36 : x
  2. Step 2: Convert to fraction form
    13,330/18,395.40 = 7,741.36/x
  3. Step 3: Cross multiply
    13,330x = 18,395.40 × 7,741.36
  4. Step 4: Simplify right side
    13,330x = 142,405,413.74
  5. Step 5: Solve for x
    x = 142,405,413.74/13,330
  6. Step 6: Final answer
    x = 10,683.08

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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.