Home / 19,206.19-28,761.09-12,164.86

Finding the Fourth Proportional to 19,206.19, 28,761.09 and 12,164.86

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Solution

The fourth proportional to 19,206.19, 28,761.09 and 12,164.86 is: 18,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,206.19 : 28,761.09 = 12,164.86 : x
  2. Step 2: Convert to fraction form
    19,206.19/28,761.09 = 12,164.86/x
  3. Step 3: Cross multiply
    19,206.19x = 28,761.09 × 12,164.86
  4. Step 4: Simplify right side
    19,206.19x = 349,874,633.30
  5. Step 5: Solve for x
    x = 349,874,633.30/19,206.19
  6. Step 6: Final answer
    x = 18,216.76

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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.