Home / 19,615.40-27,066.60-12,536.80

Finding the Fourth Proportional to 19,615.40, 27,066.60 and 12,536.80

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Solution

The fourth proportional to 19,615.40, 27,066.60 and 12,536.80 is: 17,299.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.40 : 27,066.60 = 12,536.80 : x
  2. Step 2: Convert to fraction form
    19,615.40/27,066.60 = 12,536.80/x
  3. Step 3: Cross multiply
    19,615.40x = 27,066.60 × 12,536.80
  4. Step 4: Simplify right side
    19,615.40x = 339,328,550.88
  5. Step 5: Solve for x
    x = 339,328,550.88/19,615.40
  6. Step 6: Final answer
    x = 17,299.09

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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.