Home / 19,190.13-28,748.27-11,772.93

Finding the Fourth Proportional to 19,190.13, 28,748.27 and 11,772.93

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Solution

The fourth proportional to 19,190.13, 28,748.27 and 11,772.93 is: 17,636.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,190.13 : 28,748.27 = 11,772.93 : x
  2. Step 2: Convert to fraction form
    19,190.13/28,748.27 = 11,772.93/x
  3. Step 3: Cross multiply
    19,190.13x = 28,748.27 × 11,772.93
  4. Step 4: Simplify right side
    19,190.13x = 338,451,311.47
  5. Step 5: Solve for x
    x = 338,451,311.47/19,190.13
  6. Step 6: Final answer
    x = 17,636.74

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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.