Home / 18,536.58-25,561.31-12,877.74

Finding the Fourth Proportional to 18,536.58, 25,561.31 and 12,877.74

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Solution

The fourth proportional to 18,536.58, 25,561.31 and 12,877.74 is: 17,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,536.58 : 25,561.31 = 12,877.74 : x
  2. Step 2: Convert to fraction form
    18,536.58/25,561.31 = 12,877.74/x
  3. Step 3: Cross multiply
    18,536.58x = 25,561.31 × 12,877.74
  4. Step 4: Simplify right side
    18,536.58x = 329,171,839.85
  5. Step 5: Solve for x
    x = 329,171,839.85/18,536.58
  6. Step 6: Final answer
    x = 17,757.96

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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.