Home / 13,215.09-19,805.52-10,083.54

Finding the Fourth Proportional to 13,215.09, 19,805.52 and 10,083.54

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Solution

The fourth proportional to 13,215.09, 19,805.52 and 10,083.54 is: 15,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.09 : 19,805.52 = 10,083.54 : x
  2. Step 2: Convert to fraction form
    13,215.09/19,805.52 = 10,083.54/x
  3. Step 3: Cross multiply
    13,215.09x = 19,805.52 × 10,083.54
  4. Step 4: Simplify right side
    13,215.09x = 199,709,753.14
  5. Step 5: Solve for x
    x = 199,709,753.14/13,215.09
  6. Step 6: Final answer
    x = 15,112.25

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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.