Home / 19,188.56-28,751.14-8,777.36

Finding the Fourth Proportional to 19,188.56, 28,751.14 and 8,777.36

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Solution

The fourth proportional to 19,188.56, 28,751.14 and 8,777.36 is: 13,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.56 : 28,751.14 = 8,777.36 : x
  2. Step 2: Convert to fraction form
    19,188.56/28,751.14 = 8,777.36/x
  3. Step 3: Cross multiply
    19,188.56x = 28,751.14 × 8,777.36
  4. Step 4: Simplify right side
    19,188.56x = 252,359,106.19
  5. Step 5: Solve for x
    x = 252,359,106.19/19,188.56
  6. Step 6: Final answer
    x = 13,151.54

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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.