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Finding the Fourth Proportional to 8,364.74, 12,545.68 and 2,519.99

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Solution

The fourth proportional to 8,364.74, 12,545.68 and 2,519.99 is: 3,779.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.74 : 12,545.68 = 2,519.99 : x
  2. Step 2: Convert to fraction form
    8,364.74/12,545.68 = 2,519.99/x
  3. Step 3: Cross multiply
    8,364.74x = 12,545.68 × 2,519.99
  4. Step 4: Simplify right side
    8,364.74x = 31,614,988.14
  5. Step 5: Solve for x
    x = 31,614,988.14/8,364.74
  6. Step 6: Final answer
    x = 3,779.55

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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.