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Finding the Fourth Proportional to 8,173.58, 12,252.98 and 2,978.24

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Solution

The fourth proportional to 8,173.58, 12,252.98 and 2,978.24 is: 4,464.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.58 : 12,252.98 = 2,978.24 : x
  2. Step 2: Convert to fraction form
    8,173.58/12,252.98 = 2,978.24/x
  3. Step 3: Cross multiply
    8,173.58x = 12,252.98 × 2,978.24
  4. Step 4: Simplify right side
    8,173.58x = 36,492,353.23
  5. Step 5: Solve for x
    x = 36,492,353.23/8,173.58
  6. Step 6: Final answer
    x = 4,464.67

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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.