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Finding the Fourth Proportional to 11,918.99, 17,878.59 and 3,034.33

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Solution

The fourth proportional to 11,918.99, 17,878.59 and 3,034.33 is: 4,551.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.99 : 17,878.59 = 3,034.33 : x
  2. Step 2: Convert to fraction form
    11,918.99/17,878.59 = 3,034.33/x
  3. Step 3: Cross multiply
    11,918.99x = 17,878.59 × 3,034.33
  4. Step 4: Simplify right side
    11,918.99x = 54,249,541.99
  5. Step 5: Solve for x
    x = 54,249,541.99/11,918.99
  6. Step 6: Final answer
    x = 4,551.52

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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.