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Finding the Fourth Proportional to 9,239.64, 13,860.36 and 8,741.40

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Solution

The fourth proportional to 9,239.64, 13,860.36 and 8,741.40 is: 13,112.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.64 : 13,860.36 = 8,741.40 : x
  2. Step 2: Convert to fraction form
    9,239.64/13,860.36 = 8,741.40/x
  3. Step 3: Cross multiply
    9,239.64x = 13,860.36 × 8,741.40
  4. Step 4: Simplify right side
    9,239.64x = 121,158,950.90
  5. Step 5: Solve for x
    x = 121,158,950.90/9,239.64
  6. Step 6: Final answer
    x = 13,112.95

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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.