Home / 13,181.49-19,771.62-4,860.90

Finding the Fourth Proportional to 13,181.49, 19,771.62 and 4,860.90

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Solution

The fourth proportional to 13,181.49, 19,771.62 and 4,860.90 is: 7,291.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,181.49 : 19,771.62 = 4,860.90 : x
  2. Step 2: Convert to fraction form
    13,181.49/19,771.62 = 4,860.90/x
  3. Step 3: Cross multiply
    13,181.49x = 19,771.62 × 4,860.90
  4. Step 4: Simplify right side
    13,181.49x = 96,107,867.66
  5. Step 5: Solve for x
    x = 96,107,867.66/13,181.49
  6. Step 6: Final answer
    x = 7,291.12

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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.