Home / 14,060.94-21,185.22-12,728.40

Finding the Fourth Proportional to 14,060.94, 21,185.22 and 12,728.40

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Solution

The fourth proportional to 14,060.94, 21,185.22 and 12,728.40 is: 19,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,060.94 : 21,185.22 = 12,728.40 : x
  2. Step 2: Convert to fraction form
    14,060.94/21,185.22 = 12,728.40/x
  3. Step 3: Cross multiply
    14,060.94x = 21,185.22 × 12,728.40
  4. Step 4: Simplify right side
    14,060.94x = 269,653,954.25
  5. Step 5: Solve for x
    x = 269,653,954.25/14,060.94
  6. Step 6: Final answer
    x = 19,177.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.