Home / 15,767.97-21,761.36-11,782.17

Finding the Fourth Proportional to 15,767.97, 21,761.36 and 11,782.17

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Solution

The fourth proportional to 15,767.97, 21,761.36 and 11,782.17 is: 16,260.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,767.97 : 21,761.36 = 11,782.17 : x
  2. Step 2: Convert to fraction form
    15,767.97/21,761.36 = 11,782.17/x
  3. Step 3: Cross multiply
    15,767.97x = 21,761.36 × 11,782.17
  4. Step 4: Simplify right side
    15,767.97x = 256,395,984.04
  5. Step 5: Solve for x
    x = 256,395,984.04/15,767.97
  6. Step 6: Final answer
    x = 16,260.56

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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.