Home / 21,076.56-29,083.95-11,645.13

Finding the Fourth Proportional to 21,076.56, 29,083.95 and 11,645.13

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Solution

The fourth proportional to 21,076.56, 29,083.95 and 11,645.13 is: 16,069.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,076.56 : 29,083.95 = 11,645.13 : x
  2. Step 2: Convert to fraction form
    21,076.56/29,083.95 = 11,645.13/x
  3. Step 3: Cross multiply
    21,076.56x = 29,083.95 × 11,645.13
  4. Step 4: Simplify right side
    21,076.56x = 338,686,378.66
  5. Step 5: Solve for x
    x = 338,686,378.66/21,076.56
  6. Step 6: Final answer
    x = 16,069.34

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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.