Home / 6,912.36-10,368.89-1,982.72

Finding the Fourth Proportional to 6,912.36, 10,368.89 and 1,982.72

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Solution

The fourth proportional to 6,912.36, 10,368.89 and 1,982.72 is: 2,974.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.36 : 10,368.89 = 1,982.72 : x
  2. Step 2: Convert to fraction form
    6,912.36/10,368.89 = 1,982.72/x
  3. Step 3: Cross multiply
    6,912.36x = 10,368.89 × 1,982.72
  4. Step 4: Simplify right side
    6,912.36x = 20,558,605.58
  5. Step 5: Solve for x
    x = 20,558,605.58/6,912.36
  6. Step 6: Final answer
    x = 2,974.18

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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.