Home / 13,986.94-21,063.74-12,616.06

Finding the Fourth Proportional to 13,986.94, 21,063.74 and 12,616.06

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Solution

The fourth proportional to 13,986.94, 21,063.74 and 12,616.06 is: 18,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.94 : 21,063.74 = 12,616.06 : x
  2. Step 2: Convert to fraction form
    13,986.94/21,063.74 = 12,616.06/x
  3. Step 3: Cross multiply
    13,986.94x = 21,063.74 × 12,616.06
  4. Step 4: Simplify right side
    13,986.94x = 265,741,407.66
  5. Step 5: Solve for x
    x = 265,741,407.66/13,986.94
  6. Step 6: Final answer
    x = 18,999.25

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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.