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Finding the Fourth Proportional to 8,379.16, 12,567.58 and 4,637.88

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Solution

The fourth proportional to 8,379.16, 12,567.58 and 4,637.88 is: 6,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,379.16 : 12,567.58 = 4,637.88 : x
  2. Step 2: Convert to fraction form
    8,379.16/12,567.58 = 4,637.88/x
  3. Step 3: Cross multiply
    8,379.16x = 12,567.58 × 4,637.88
  4. Step 4: Simplify right side
    8,379.16x = 58,286,927.93
  5. Step 5: Solve for x
    x = 58,286,927.93/8,379.16
  6. Step 6: Final answer
    x = 6,956.18

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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.