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Finding the Fourth Proportional to 10,720.69, 14,792.01 and 6,241.75

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Solution

The fourth proportional to 10,720.69, 14,792.01 and 6,241.75 is: 8,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.69 : 14,792.01 = 6,241.75 : x
  2. Step 2: Convert to fraction form
    10,720.69/14,792.01 = 6,241.75/x
  3. Step 3: Cross multiply
    10,720.69x = 14,792.01 × 6,241.75
  4. Step 4: Simplify right side
    10,720.69x = 92,328,028.42
  5. Step 5: Solve for x
    x = 92,328,028.42/10,720.69
  6. Step 6: Final answer
    x = 8,612.13

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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.