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Finding the Fourth Proportional to 9,054.80, 13,603.80 and 8,104.40

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Solution

The fourth proportional to 9,054.80, 13,603.80 and 8,104.40 is: 12,175.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,054.80 : 13,603.80 = 8,104.40 : x
  2. Step 2: Convert to fraction form
    9,054.80/13,603.80 = 8,104.40/x
  3. Step 3: Cross multiply
    9,054.80x = 13,603.80 × 8,104.40
  4. Step 4: Simplify right side
    9,054.80x = 110,250,636.72
  5. Step 5: Solve for x
    x = 110,250,636.72/9,054.80
  6. Step 6: Final answer
    x = 12,175.93

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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.