Home / 13,333.36-18,399.96-7,365

Finding the Fourth Proportional to 13,333.36, 18,399.96 and 7,365

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Solution

The fourth proportional to 13,333.36, 18,399.96 and 7,365 is: 10,163.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.36 : 18,399.96 = 7,365 : x
  2. Step 2: Convert to fraction form
    13,333.36/18,399.96 = 7,365/x
  3. Step 3: Cross multiply
    13,333.36x = 18,399.96 × 7,365
  4. Step 4: Simplify right side
    13,333.36x = 135,515,705.40
  5. Step 5: Solve for x
    x = 135,515,705.40/13,333.36
  6. Step 6: Final answer
    x = 10,163.66

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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.