Home / 18,728.06-25,845.47-10,770.28

Finding the Fourth Proportional to 18,728.06, 25,845.47 and 10,770.28

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Solution

The fourth proportional to 18,728.06, 25,845.47 and 10,770.28 is: 14,863.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728.06 : 25,845.47 = 10,770.28 : x
  2. Step 2: Convert to fraction form
    18,728.06/25,845.47 = 10,770.28/x
  3. Step 3: Cross multiply
    18,728.06x = 25,845.47 × 10,770.28
  4. Step 4: Simplify right side
    18,728.06x = 278,362,870.56
  5. Step 5: Solve for x
    x = 278,362,870.56/18,728.06
  6. Step 6: Final answer
    x = 14,863.42

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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.