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Finding the Fourth Proportional to 8,390.95, 12,596.15 and 4,502.95

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Solution

The fourth proportional to 8,390.95, 12,596.15 and 4,502.95 is: 6,759.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.95 : 12,596.15 = 4,502.95 : x
  2. Step 2: Convert to fraction form
    8,390.95/12,596.15 = 4,502.95/x
  3. Step 3: Cross multiply
    8,390.95x = 12,596.15 × 4,502.95
  4. Step 4: Simplify right side
    8,390.95x = 56,719,833.64
  5. Step 5: Solve for x
    x = 56,719,833.64/8,390.95
  6. Step 6: Final answer
    x = 6,759.64

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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.