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Finding the Fourth Proportional to 8,167.65, 11,271.33 and 4,631.55

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Solution

The fourth proportional to 8,167.65, 11,271.33 and 4,631.55 is: 6,391.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,167.65 : 11,271.33 = 4,631.55 : x
  2. Step 2: Convert to fraction form
    8,167.65/11,271.33 = 4,631.55/x
  3. Step 3: Cross multiply
    8,167.65x = 11,271.33 × 4,631.55
  4. Step 4: Simplify right side
    8,167.65x = 52,203,728.46
  5. Step 5: Solve for x
    x = 52,203,728.46/8,167.65
  6. Step 6: Final answer
    x = 6,391.52

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