Home / 18,516.41-25,536.57-12,860.58

Finding the Fourth Proportional to 18,516.41, 25,536.57 and 12,860.58

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Solution

The fourth proportional to 18,516.41, 25,536.57 and 12,860.58 is: 17,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,516.41 : 25,536.57 = 12,860.58 : x
  2. Step 2: Convert to fraction form
    18,516.41/25,536.57 = 12,860.58/x
  3. Step 3: Cross multiply
    18,516.41x = 25,536.57 × 12,860.58
  4. Step 4: Simplify right side
    18,516.41x = 328,415,037.11
  5. Step 5: Solve for x
    x = 328,415,037.11/18,516.41
  6. Step 6: Final answer
    x = 17,736.44

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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.