Home / 12,843.89-19,265.56-5,918.39

Finding the Fourth Proportional to 12,843.89, 19,265.56 and 5,918.39

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Solution

The fourth proportional to 12,843.89, 19,265.56 and 5,918.39 is: 8,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,843.89 : 19,265.56 = 5,918.39 : x
  2. Step 2: Convert to fraction form
    12,843.89/19,265.56 = 5,918.39/x
  3. Step 3: Cross multiply
    12,843.89x = 19,265.56 × 5,918.39
  4. Step 4: Simplify right side
    12,843.89x = 114,021,097.65
  5. Step 5: Solve for x
    x = 114,021,097.65/12,843.89
  6. Step 6: Final answer
    x = 8,877.46

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1.5x scale

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.