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Finding the Fourth Proportional to 9,865.80, 13,611.11 and 6,038.96

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Solution

The fourth proportional to 9,865.80, 13,611.11 and 6,038.96 is: 8,331.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,865.80 : 13,611.11 = 6,038.96 : x
  2. Step 2: Convert to fraction form
    9,865.80/13,611.11 = 6,038.96/x
  3. Step 3: Cross multiply
    9,865.80x = 13,611.11 × 6,038.96
  4. Step 4: Simplify right side
    9,865.80x = 82,196,850.60
  5. Step 5: Solve for x
    x = 82,196,850.60/9,865.80
  6. Step 6: Final answer
    x = 8,331.49

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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.