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Finding the Fourth Proportional to 8,438.00, 12,657.33 and 2,895.15

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Solution

The fourth proportional to 8,438.00, 12,657.33 and 2,895.15 is: 4,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.00 : 12,657.33 = 2,895.15 : x
  2. Step 2: Convert to fraction form
    8,438.00/12,657.33 = 2,895.15/x
  3. Step 3: Cross multiply
    8,438.00x = 12,657.33 × 2,895.15
  4. Step 4: Simplify right side
    8,438.00x = 36,644,868.95
  5. Step 5: Solve for x
    x = 36,644,868.95/8,438.00
  6. Step 6: Final answer
    x = 4,342.84

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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.