Home / 10,715.12-16,083.04-5,172.36

Finding the Fourth Proportional to 10,715.12, 16,083.04 and 5,172.36

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Solution

The fourth proportional to 10,715.12, 16,083.04 and 5,172.36 is: 7,763.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,715.12 : 16,083.04 = 5,172.36 : x
  2. Step 2: Convert to fraction form
    10,715.12/16,083.04 = 5,172.36/x
  3. Step 3: Cross multiply
    10,715.12x = 16,083.04 × 5,172.36
  4. Step 4: Simplify right side
    10,715.12x = 83,187,209.23
  5. Step 5: Solve for x
    x = 83,187,209.23/10,715.12
  6. Step 6: Final answer
    x = 7,763.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.