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Finding the Fourth Proportional to 10,839.90, 14,958.99 and 6,124.17

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Solution

The fourth proportional to 10,839.90, 14,958.99 and 6,124.17 is: 8,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.90 : 14,958.99 = 6,124.17 : x
  2. Step 2: Convert to fraction form
    10,839.90/14,958.99 = 6,124.17/x
  3. Step 3: Cross multiply
    10,839.90x = 14,958.99 × 6,124.17
  4. Step 4: Simplify right side
    10,839.90x = 91,611,397.79
  5. Step 5: Solve for x
    x = 91,611,397.79/10,839.90
  6. Step 6: Final answer
    x = 8,451.31

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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.