Home / 9,129.75-13,692.52-2,556.60

Finding the Fourth Proportional to 9,129.75, 13,692.52 and 2,556.60

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Solution

The fourth proportional to 9,129.75, 13,692.52 and 2,556.60 is: 3,834.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.75 : 13,692.52 = 2,556.60 : x
  2. Step 2: Convert to fraction form
    9,129.75/13,692.52 = 2,556.60/x
  3. Step 3: Cross multiply
    9,129.75x = 13,692.52 × 2,556.60
  4. Step 4: Simplify right side
    9,129.75x = 35,006,296.63
  5. Step 5: Solve for x
    x = 35,006,296.63/9,129.75
  6. Step 6: Final answer
    x = 3,834.31

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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.