Home / 8,172.30-11,276.88-4,635.54

Finding the Fourth Proportional to 8,172.30, 11,276.88 and 4,635.54

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Solution

The fourth proportional to 8,172.30, 11,276.88 and 4,635.54 is: 6,396.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,172.30 : 11,276.88 = 4,635.54 : x
  2. Step 2: Convert to fraction form
    8,172.30/11,276.88 = 4,635.54/x
  3. Step 3: Cross multiply
    8,172.30x = 11,276.88 × 4,635.54
  4. Step 4: Simplify right side
    8,172.30x = 52,274,428.32
  5. Step 5: Solve for x
    x = 52,274,428.32/8,172.30
  6. Step 6: Final answer
    x = 6,396.54

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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.