Home / 19,106.64-28,622.67-12,512.82

Finding the Fourth Proportional to 19,106.64, 28,622.67 and 12,512.82

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Solution

The fourth proportional to 19,106.64, 28,622.67 and 12,512.82 is: 18,744.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,106.64 : 28,622.67 = 12,512.82 : x
  2. Step 2: Convert to fraction form
    19,106.64/28,622.67 = 12,512.82/x
  3. Step 3: Cross multiply
    19,106.64x = 28,622.67 × 12,512.82
  4. Step 4: Simplify right side
    19,106.64x = 358,150,317.63
  5. Step 5: Solve for x
    x = 358,150,317.63/19,106.64
  6. Step 6: Final answer
    x = 18,744.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.