Home / 19,389.58-26,732.73-12,664.55

Finding the Fourth Proportional to 19,389.58, 26,732.73 and 12,664.55

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Solution

The fourth proportional to 19,389.58, 26,732.73 and 12,664.55 is: 17,460.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,389.58 : 26,732.73 = 12,664.55 : x
  2. Step 2: Convert to fraction form
    19,389.58/26,732.73 = 12,664.55/x
  3. Step 3: Cross multiply
    19,389.58x = 26,732.73 × 12,664.55
  4. Step 4: Simplify right side
    19,389.58x = 338,558,110.05
  5. Step 5: Solve for x
    x = 338,558,110.05/19,389.58
  6. Step 6: Final answer
    x = 17,460.83

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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.