Home / 10,208.08-14,083.63-5,731.21

Finding the Fourth Proportional to 10,208.08, 14,083.63 and 5,731.21

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Solution

The fourth proportional to 10,208.08, 14,083.63 and 5,731.21 is: 7,907.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,208.08 : 14,083.63 = 5,731.21 : x
  2. Step 2: Convert to fraction form
    10,208.08/14,083.63 = 5,731.21/x
  3. Step 3: Cross multiply
    10,208.08x = 14,083.63 × 5,731.21
  4. Step 4: Simplify right side
    10,208.08x = 80,716,241.09
  5. Step 5: Solve for x
    x = 80,716,241.09/10,208.08
  6. Step 6: Final answer
    x = 7,907.09

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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.