Home / 19,764.82-27,276.13-11,268.20

Finding the Fourth Proportional to 19,764.82, 27,276.13 and 11,268.20

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Solution

The fourth proportional to 19,764.82, 27,276.13 and 11,268.20 is: 15,550.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.82 : 27,276.13 = 11,268.20 : x
  2. Step 2: Convert to fraction form
    19,764.82/27,276.13 = 11,268.20/x
  3. Step 3: Cross multiply
    19,764.82x = 27,276.13 × 11,268.20
  4. Step 4: Simplify right side
    19,764.82x = 307,352,888.07
  5. Step 5: Solve for x
    x = 307,352,888.07/19,764.82
  6. Step 6: Final answer
    x = 15,550.50

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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.