Home / 18,287.06-27,447.60-7,201.40

Finding the Fourth Proportional to 18,287.06, 27,447.60 and 7,201.40

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Solution

The fourth proportional to 18,287.06, 27,447.60 and 7,201.40 is: 10,808.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,287.06 : 27,447.60 = 7,201.40 : x
  2. Step 2: Convert to fraction form
    18,287.06/27,447.60 = 7,201.40/x
  3. Step 3: Cross multiply
    18,287.06x = 27,447.60 × 7,201.40
  4. Step 4: Simplify right side
    18,287.06x = 197,661,146.64
  5. Step 5: Solve for x
    x = 197,661,146.64/18,287.06
  6. Step 6: Final answer
    x = 10,808.80

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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.