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Finding the Fourth Proportional to 8,751.36, 13,127.01 and 2,177.55

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Solution

The fourth proportional to 8,751.36, 13,127.01 and 2,177.55 is: 3,266.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.36 : 13,127.01 = 2,177.55 : x
  2. Step 2: Convert to fraction form
    8,751.36/13,127.01 = 2,177.55/x
  3. Step 3: Cross multiply
    8,751.36x = 13,127.01 × 2,177.55
  4. Step 4: Simplify right side
    8,751.36x = 28,584,654.99
  5. Step 5: Solve for x
    x = 28,584,654.99/8,751.36
  6. Step 6: Final answer
    x = 3,266.31

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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.