Home / 13,605.44-18,786.94-10,242.45

Finding the Fourth Proportional to 13,605.44, 18,786.94 and 10,242.45

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Solution

The fourth proportional to 13,605.44, 18,786.94 and 10,242.45 is: 14,143.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.44 : 18,786.94 = 10,242.45 : x
  2. Step 2: Convert to fraction form
    13,605.44/18,786.94 = 10,242.45/x
  3. Step 3: Cross multiply
    13,605.44x = 18,786.94 × 10,242.45
  4. Step 4: Simplify right side
    13,605.44x = 192,424,268.00
  5. Step 5: Solve for x
    x = 192,424,268.00/13,605.44
  6. Step 6: Final answer
    x = 14,143.19

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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.