Home / 13,393.37-18,482.75-7,343.54

Finding the Fourth Proportional to 13,393.37, 18,482.75 and 7,343.54

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Solution

The fourth proportional to 13,393.37, 18,482.75 and 7,343.54 is: 10,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.37 : 18,482.75 = 7,343.54 : x
  2. Step 2: Convert to fraction form
    13,393.37/18,482.75 = 7,343.54/x
  3. Step 3: Cross multiply
    13,393.37x = 18,482.75 × 7,343.54
  4. Step 4: Simplify right side
    13,393.37x = 135,728,813.94
  5. Step 5: Solve for x
    x = 135,728,813.94/13,393.37
  6. Step 6: Final answer
    x = 10,134.03

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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.