Home / 7,983.09-11,974.60-4,821.16

Finding the Fourth Proportional to 7,983.09, 11,974.60 and 4,821.16

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Solution

The fourth proportional to 7,983.09, 11,974.60 and 4,821.16 is: 7,231.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,983.09 : 11,974.60 = 4,821.16 : x
  2. Step 2: Convert to fraction form
    7,983.09/11,974.60 = 4,821.16/x
  3. Step 3: Cross multiply
    7,983.09x = 11,974.60 × 4,821.16
  4. Step 4: Simplify right side
    7,983.09x = 57,731,462.54
  5. Step 5: Solve for x
    x = 57,731,462.54/7,983.09
  6. Step 6: Final answer
    x = 7,231.72

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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.