Home / 19,634.60-27,087.12-12,911.60

Finding the Fourth Proportional to 19,634.60, 27,087.12 and 12,911.60

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Solution

The fourth proportional to 19,634.60, 27,087.12 and 12,911.60 is: 17,812.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,634.60 : 27,087.12 = 12,911.60 : x
  2. Step 2: Convert to fraction form
    19,634.60/27,087.12 = 12,911.60/x
  3. Step 3: Cross multiply
    19,634.60x = 27,087.12 × 12,911.60
  4. Step 4: Simplify right side
    19,634.60x = 349,738,058.59
  5. Step 5: Solve for x
    x = 349,738,058.59/19,634.60
  6. Step 6: Final answer
    x = 17,812.33

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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.