Home / 12,791.80-19,162.59-11,398.60

Finding the Fourth Proportional to 12,791.80, 19,162.59 and 11,398.60

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Solution

The fourth proportional to 12,791.80, 19,162.59 and 11,398.60 is: 17,075.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.80 : 19,162.59 = 11,398.60 : x
  2. Step 2: Convert to fraction form
    12,791.80/19,162.59 = 11,398.60/x
  3. Step 3: Cross multiply
    12,791.80x = 19,162.59 × 11,398.60
  4. Step 4: Simplify right side
    12,791.80x = 218,426,698.37
  5. Step 5: Solve for x
    x = 218,426,698.37/12,791.80
  6. Step 6: Final answer
    x = 17,075.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.