Home / 7,942.07-11,916.94-5,617.01

Finding the Fourth Proportional to 7,942.07, 11,916.94 and 5,617.01

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Solution

The fourth proportional to 7,942.07, 11,916.94 and 5,617.01 is: 8,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.07 : 11,916.94 = 5,617.01 : x
  2. Step 2: Convert to fraction form
    7,942.07/11,916.94 = 5,617.01/x
  3. Step 3: Cross multiply
    7,942.07x = 11,916.94 × 5,617.01
  4. Step 4: Simplify right side
    7,942.07x = 66,937,586.90
  5. Step 5: Solve for x
    x = 66,937,586.90/7,942.07
  6. Step 6: Final answer
    x = 8,428.23

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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.