Home / 10,912.40-16,368.97-3,015.51

Finding the Fourth Proportional to 10,912.40, 16,368.97 and 3,015.51

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Solution

The fourth proportional to 10,912.40, 16,368.97 and 3,015.51 is: 4,523.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.40 : 16,368.97 = 3,015.51 : x
  2. Step 2: Convert to fraction form
    10,912.40/16,368.97 = 3,015.51/x
  3. Step 3: Cross multiply
    10,912.40x = 16,368.97 × 3,015.51
  4. Step 4: Simplify right side
    10,912.40x = 49,360,792.72
  5. Step 5: Solve for x
    x = 49,360,792.72/10,912.40
  6. Step 6: Final answer
    x = 4,523.37

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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.