Home / 13,386.75-18,473.44-7,418.37

Finding the Fourth Proportional to 13,386.75, 18,473.44 and 7,418.37

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Solution

The fourth proportional to 13,386.75, 18,473.44 and 7,418.37 is: 10,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.75 : 18,473.44 = 7,418.37 : x
  2. Step 2: Convert to fraction form
    13,386.75/18,473.44 = 7,418.37/x
  3. Step 3: Cross multiply
    13,386.75x = 18,473.44 × 7,418.37
  4. Step 4: Simplify right side
    13,386.75x = 137,042,794.68
  5. Step 5: Solve for x
    x = 137,042,794.68/13,386.75
  6. Step 6: Final answer
    x = 10,237.20

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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.