Home / 19,216.50-26,540.64-12,917.94

Finding the Fourth Proportional to 19,216.50, 26,540.64 and 12,917.94

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Solution

The fourth proportional to 19,216.50, 26,540.64 and 12,917.94 is: 17,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,216.50 : 26,540.64 = 12,917.94 : x
  2. Step 2: Convert to fraction form
    19,216.50/26,540.64 = 12,917.94/x
  3. Step 3: Cross multiply
    19,216.50x = 26,540.64 × 12,917.94
  4. Step 4: Simplify right side
    19,216.50x = 342,850,395.08
  5. Step 5: Solve for x
    x = 342,850,395.08/19,216.50
  6. Step 6: Final answer
    x = 17,841.46

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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.