Home / 13,886.90-19,163.84-12,757.25

Finding the Fourth Proportional to 13,886.90, 19,163.84 and 12,757.25

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Solution

The fourth proportional to 13,886.90, 19,163.84 and 12,757.25 is: 17,604.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.90 : 19,163.84 = 12,757.25 : x
  2. Step 2: Convert to fraction form
    13,886.90/19,163.84 = 12,757.25/x
  3. Step 3: Cross multiply
    13,886.90x = 19,163.84 × 12,757.25
  4. Step 4: Simplify right side
    13,886.90x = 244,477,897.84
  5. Step 5: Solve for x
    x = 244,477,897.84/13,886.90
  6. Step 6: Final answer
    x = 17,604.93

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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.