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Finding the Fourth Proportional to 12,508.59, 18,768.14 and 5,484.98

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Solution

The fourth proportional to 12,508.59, 18,768.14 and 5,484.98 is: 8,229.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.59 : 18,768.14 = 5,484.98 : x
  2. Step 2: Convert to fraction form
    12,508.59/18,768.14 = 5,484.98/x
  3. Step 3: Cross multiply
    12,508.59x = 18,768.14 × 5,484.98
  4. Step 4: Simplify right side
    12,508.59x = 102,942,751.27
  5. Step 5: Solve for x
    x = 102,942,751.27/12,508.59
  6. Step 6: Final answer
    x = 8,229.76

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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.