Home / 7,371.25-10,172.12-4,013.99

Finding the Fourth Proportional to 7,371.25, 10,172.12 and 4,013.99

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Solution

The fourth proportional to 7,371.25, 10,172.12 and 4,013.99 is: 5,539.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,371.25 : 10,172.12 = 4,013.99 : x
  2. Step 2: Convert to fraction form
    7,371.25/10,172.12 = 4,013.99/x
  3. Step 3: Cross multiply
    7,371.25x = 10,172.12 × 4,013.99
  4. Step 4: Simplify right side
    7,371.25x = 40,830,787.96
  5. Step 5: Solve for x
    x = 40,830,787.96/7,371.25
  6. Step 6: Final answer
    x = 5,539.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.