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Finding the Fourth Proportional to 8,307.54, 12,456.36 and 3,374.64

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Solution

The fourth proportional to 8,307.54, 12,456.36 and 3,374.64 is: 5,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.54 : 12,456.36 = 3,374.64 : x
  2. Step 2: Convert to fraction form
    8,307.54/12,456.36 = 3,374.64/x
  3. Step 3: Cross multiply
    8,307.54x = 12,456.36 × 3,374.64
  4. Step 4: Simplify right side
    8,307.54x = 42,035,730.71
  5. Step 5: Solve for x
    x = 42,035,730.71/8,307.54
  6. Step 6: Final answer
    x = 5,059.95

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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.