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Finding the Fourth Proportional to 8,684.57, 11,984.90 and 5,100.56

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Solution

The fourth proportional to 8,684.57, 11,984.90 and 5,100.56 is: 7,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.57 : 11,984.90 = 5,100.56 : x
  2. Step 2: Convert to fraction form
    8,684.57/11,984.90 = 5,100.56/x
  3. Step 3: Cross multiply
    8,684.57x = 11,984.90 × 5,100.56
  4. Step 4: Simplify right side
    8,684.57x = 61,129,654.37
  5. Step 5: Solve for x
    x = 61,129,654.37/8,684.57
  6. Step 6: Final answer
    x = 7,038.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.