Home / 13,072.36-18,040.26-7,485.16

Finding the Fourth Proportional to 13,072.36, 18,040.26 and 7,485.16

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Solution

The fourth proportional to 13,072.36, 18,040.26 and 7,485.16 is: 10,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,072.36 : 18,040.26 = 7,485.16 : x
  2. Step 2: Convert to fraction form
    13,072.36/18,040.26 = 7,485.16/x
  3. Step 3: Cross multiply
    13,072.36x = 18,040.26 × 7,485.16
  4. Step 4: Simplify right side
    13,072.36x = 135,034,232.54
  5. Step 5: Solve for x
    x = 135,034,232.54/13,072.36
  6. Step 6: Final answer
    x = 10,329.75

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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.