Home / 13,441.80-18,550.31-7,473.39

Finding the Fourth Proportional to 13,441.80, 18,550.31 and 7,473.39

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Solution

The fourth proportional to 13,441.80, 18,550.31 and 7,473.39 is: 10,313.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.80 : 18,550.31 = 7,473.39 : x
  2. Step 2: Convert to fraction form
    13,441.80/18,550.31 = 7,473.39/x
  3. Step 3: Cross multiply
    13,441.80x = 18,550.31 × 7,473.39
  4. Step 4: Simplify right side
    13,441.80x = 138,633,701.25
  5. Step 5: Solve for x
    x = 138,633,701.25/13,441.80
  6. Step 6: Final answer
    x = 10,313.63

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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.