Home / 13,333.08-18,399.58-7,365.16

Finding the Fourth Proportional to 13,333.08, 18,399.58 and 7,365.16

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Solution

The fourth proportional to 13,333.08, 18,399.58 and 7,365.16 is: 10,163.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.08 : 18,399.58 = 7,365.16 : x
  2. Step 2: Convert to fraction form
    13,333.08/18,399.58 = 7,365.16/x
  3. Step 3: Cross multiply
    13,333.08x = 18,399.58 × 7,365.16
  4. Step 4: Simplify right side
    13,333.08x = 135,515,850.63
  5. Step 5: Solve for x
    x = 135,515,850.63/13,333.08
  6. Step 6: Final answer
    x = 10,163.88

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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.