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Finding the Fourth Proportional to 8,600.84, 12,895.92 and 5,635.63

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Solution

The fourth proportional to 8,600.84, 12,895.92 and 5,635.63 is: 8,449.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,600.84 : 12,895.92 = 5,635.63 : x
  2. Step 2: Convert to fraction form
    8,600.84/12,895.92 = 5,635.63/x
  3. Step 3: Cross multiply
    8,600.84x = 12,895.92 × 5,635.63
  4. Step 4: Simplify right side
    8,600.84x = 72,676,633.63
  5. Step 5: Solve for x
    x = 72,676,633.63/8,600.84
  6. Step 6: Final answer
    x = 8,449.95

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1.5x scale

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.