Home / 18,976.95-26,211.36-13,028.31

Finding the Fourth Proportional to 18,976.95, 26,211.36 and 13,028.31

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Solution

The fourth proportional to 18,976.95, 26,211.36 and 13,028.31 is: 17,994.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.95 : 26,211.36 = 13,028.31 : x
  2. Step 2: Convert to fraction form
    18,976.95/26,211.36 = 13,028.31/x
  3. Step 3: Cross multiply
    18,976.95x = 26,211.36 × 13,028.31
  4. Step 4: Simplify right side
    18,976.95x = 341,489,723.60
  5. Step 5: Solve for x
    x = 341,489,723.60/18,976.95
  6. Step 6: Final answer
    x = 17,994.97

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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.