Home / 6,912.40-10,362.72-3,013.90

Finding the Fourth Proportional to 6,912.40, 10,362.72 and 3,013.90

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Solution

The fourth proportional to 6,912.40, 10,362.72 and 3,013.90 is: 4,518.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.40 : 10,362.72 = 3,013.90 : x
  2. Step 2: Convert to fraction form
    6,912.40/10,362.72 = 3,013.90/x
  3. Step 3: Cross multiply
    6,912.40x = 10,362.72 × 3,013.90
  4. Step 4: Simplify right side
    6,912.40x = 31,232,201.81
  5. Step 5: Solve for x
    x = 31,232,201.81/6,912.40
  6. Step 6: Final answer
    x = 4,518.29

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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.