Home / 18,531.06-27,796.79-7,287.54

Finding the Fourth Proportional to 18,531.06, 27,796.79 and 7,287.54

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Solution

The fourth proportional to 18,531.06, 27,796.79 and 7,287.54 is: 10,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,531.06 : 27,796.79 = 7,287.54 : x
  2. Step 2: Convert to fraction form
    18,531.06/27,796.79 = 7,287.54/x
  3. Step 3: Cross multiply
    18,531.06x = 27,796.79 × 7,287.54
  4. Step 4: Simplify right side
    18,531.06x = 202,570,219.00
  5. Step 5: Solve for x
    x = 202,570,219.00/18,531.06
  6. Step 6: Final answer
    x = 10,931.39

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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.