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Finding the Fourth Proportional to 8,379.46, 12,574.48 and 4,684.11

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Solution

The fourth proportional to 8,379.46, 12,574.48 and 4,684.11 is: 7,029.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.46 : 12,574.48 = 4,684.11 : x
  2. Step 2: Convert to fraction form
    8,379.46/12,574.48 = 4,684.11/x
  3. Step 3: Cross multiply
    8,379.46x = 12,574.48 × 4,684.11
  4. Step 4: Simplify right side
    8,379.46x = 58,900,281.34
  5. Step 5: Solve for x
    x = 58,900,281.34/8,379.46
  6. Step 6: Final answer
    x = 7,029.13

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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.