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Finding the Fourth Proportional to 8,239, 12,360.33 and 4,539.33

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Solution

The fourth proportional to 8,239, 12,360.33 and 4,539.33 is: 6,810.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,239 : 12,360.33 = 4,539.33 : x
  2. Step 2: Convert to fraction form
    8,239/12,360.33 = 4,539.33/x
  3. Step 3: Cross multiply
    8,239x = 12,360.33 × 4,539.33
  4. Step 4: Simplify right side
    8,239x = 56,107,616.78
  5. Step 5: Solve for x
    x = 56,107,616.78/8,239
  6. Step 6: Final answer
    x = 6,810.00

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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.