Home / 15,033.09-20,698.16-13,239.33

Finding the Fourth Proportional to 15,033.09, 20,698.16 and 13,239.33

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Solution

The fourth proportional to 15,033.09, 20,698.16 and 13,239.33 is: 18,228.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,033.09 : 20,698.16 = 13,239.33 : x
  2. Step 2: Convert to fraction form
    15,033.09/20,698.16 = 13,239.33/x
  3. Step 3: Cross multiply
    15,033.09x = 20,698.16 × 13,239.33
  4. Step 4: Simplify right side
    15,033.09x = 274,029,770.63
  5. Step 5: Solve for x
    x = 274,029,770.63/15,033.09
  6. Step 6: Final answer
    x = 18,228.44

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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.