Home / 13,272.69-19,918.08-5,481.45

Finding the Fourth Proportional to 13,272.69, 19,918.08 and 5,481.45

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Solution

The fourth proportional to 13,272.69, 19,918.08 and 5,481.45 is: 8,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,272.69 : 19,918.08 = 5,481.45 : x
  2. Step 2: Convert to fraction form
    13,272.69/19,918.08 = 5,481.45/x
  3. Step 3: Cross multiply
    13,272.69x = 19,918.08 × 5,481.45
  4. Step 4: Simplify right side
    13,272.69x = 109,179,959.62
  5. Step 5: Solve for x
    x = 109,179,959.62/13,272.69
  6. Step 6: Final answer
    x = 8,225.91

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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.