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Finding the Fourth Proportional to 8,168.51, 12,248.76 and 3,423.77

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Solution

The fourth proportional to 8,168.51, 12,248.76 and 3,423.77 is: 5,133.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,168.51 : 12,248.76 = 3,423.77 : x
  2. Step 2: Convert to fraction form
    8,168.51/12,248.76 = 3,423.77/x
  3. Step 3: Cross multiply
    8,168.51x = 12,248.76 × 3,423.77
  4. Step 4: Simplify right side
    8,168.51x = 41,936,980.49
  5. Step 5: Solve for x
    x = 41,936,980.49/8,168.51
  6. Step 6: Final answer
    x = 5,133.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.