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Finding the Fourth Proportional to 8,376.95, 12,565.52 and 2,136.95

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Solution

The fourth proportional to 8,376.95, 12,565.52 and 2,136.95 is: 3,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,376.95 : 12,565.52 = 2,136.95 : x
  2. Step 2: Convert to fraction form
    8,376.95/12,565.52 = 2,136.95/x
  3. Step 3: Cross multiply
    8,376.95x = 12,565.52 × 2,136.95
  4. Step 4: Simplify right side
    8,376.95x = 26,851,887.96
  5. Step 5: Solve for x
    x = 26,851,887.96/8,376.95
  6. Step 6: Final answer
    x = 3,205.45

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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.