Home / 13,289.97-18,323.11-10,891.26

Finding the Fourth Proportional to 13,289.97, 18,323.11 and 10,891.26

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Solution

The fourth proportional to 13,289.97, 18,323.11 and 10,891.26 is: 15,015.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.97 : 18,323.11 = 10,891.26 : x
  2. Step 2: Convert to fraction form
    13,289.97/18,323.11 = 10,891.26/x
  3. Step 3: Cross multiply
    13,289.97x = 18,323.11 × 10,891.26
  4. Step 4: Simplify right side
    13,289.97x = 199,561,768.63
  5. Step 5: Solve for x
    x = 199,561,768.63/13,289.97
  6. Step 6: Final answer
    x = 15,015.96

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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.