Home / 9,861.84-13,611.60-6,504.96

Finding the Fourth Proportional to 9,861.84, 13,611.60 and 6,504.96

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Solution

The fourth proportional to 9,861.84, 13,611.60 and 6,504.96 is: 8,978.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,861.84 : 13,611.60 = 6,504.96 : x
  2. Step 2: Convert to fraction form
    9,861.84/13,611.60 = 6,504.96/x
  3. Step 3: Cross multiply
    9,861.84x = 13,611.60 × 6,504.96
  4. Step 4: Simplify right side
    9,861.84x = 88,542,913.54
  5. Step 5: Solve for x
    x = 88,542,913.54/9,861.84
  6. Step 6: Final answer
    x = 8,978.34

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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.