Home / 19,195.86-28,762.29-11,784.63

Finding the Fourth Proportional to 19,195.86, 28,762.29 and 11,784.63

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Solution

The fourth proportional to 19,195.86, 28,762.29 and 11,784.63 is: 17,657.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,195.86 : 28,762.29 = 11,784.63 : x
  2. Step 2: Convert to fraction form
    19,195.86/28,762.29 = 11,784.63/x
  3. Step 3: Cross multiply
    19,195.86x = 28,762.29 × 11,784.63
  4. Step 4: Simplify right side
    19,195.86x = 338,952,945.60
  5. Step 5: Solve for x
    x = 338,952,945.60/19,195.86
  6. Step 6: Final answer
    x = 17,657.61

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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.