Home / 13,329.52-18,393.84-7,361.20

Finding the Fourth Proportional to 13,329.52, 18,393.84 and 7,361.20

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Solution

The fourth proportional to 13,329.52, 18,393.84 and 7,361.20 is: 10,157.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,329.52 : 18,393.84 = 7,361.20 : x
  2. Step 2: Convert to fraction form
    13,329.52/18,393.84 = 7,361.20/x
  3. Step 3: Cross multiply
    13,329.52x = 18,393.84 × 7,361.20
  4. Step 4: Simplify right side
    13,329.52x = 135,400,735.01
  5. Step 5: Solve for x
    x = 135,400,735.01/13,329.52
  6. Step 6: Final answer
    x = 10,157.96

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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.