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Finding the Fourth Proportional to 8,364.16, 11,542.80 and 4,638.16

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Solution

The fourth proportional to 8,364.16, 11,542.80 and 4,638.16 is: 6,400.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.16 : 11,542.80 = 4,638.16 : x
  2. Step 2: Convert to fraction form
    8,364.16/11,542.80 = 4,638.16/x
  3. Step 3: Cross multiply
    8,364.16x = 11,542.80 × 4,638.16
  4. Step 4: Simplify right side
    8,364.16x = 53,537,353.25
  5. Step 5: Solve for x
    x = 53,537,353.25/8,364.16
  6. Step 6: Final answer
    x = 6,400.80

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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.