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Finding the Fourth Proportional to 8,798.81, 12,142.35 and 4,819.95

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Solution

The fourth proportional to 8,798.81, 12,142.35 and 4,819.95 is: 6,651.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.81 : 12,142.35 = 4,819.95 : x
  2. Step 2: Convert to fraction form
    8,798.81/12,142.35 = 4,819.95/x
  3. Step 3: Cross multiply
    8,798.81x = 12,142.35 × 4,819.95
  4. Step 4: Simplify right side
    8,798.81x = 58,525,519.88
  5. Step 5: Solve for x
    x = 58,525,519.88/8,798.81
  6. Step 6: Final answer
    x = 6,651.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.