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Finding the Fourth Proportional to 8,400.88, 12,602.01 and 2,557.54

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Solution

The fourth proportional to 8,400.88, 12,602.01 and 2,557.54 is: 3,836.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,400.88 : 12,602.01 = 2,557.54 : x
  2. Step 2: Convert to fraction form
    8,400.88/12,602.01 = 2,557.54/x
  3. Step 3: Cross multiply
    8,400.88x = 12,602.01 × 2,557.54
  4. Step 4: Simplify right side
    8,400.88x = 32,230,144.66
  5. Step 5: Solve for x
    x = 32,230,144.66/8,400.88
  6. Step 6: Final answer
    x = 3,836.52

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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.