Home / 19,215.46-26,512.82-11,661.62

Finding the Fourth Proportional to 19,215.46, 26,512.82 and 11,661.62

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Solution

The fourth proportional to 19,215.46, 26,512.82 and 11,661.62 is: 16,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.46 : 26,512.82 = 11,661.62 : x
  2. Step 2: Convert to fraction form
    19,215.46/26,512.82 = 11,661.62/x
  3. Step 3: Cross multiply
    19,215.46x = 26,512.82 × 11,661.62
  4. Step 4: Simplify right side
    19,215.46x = 309,182,431.97
  5. Step 5: Solve for x
    x = 309,182,431.97/19,215.46
  6. Step 6: Final answer
    x = 16,090.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.