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Finding the Fourth Proportional to 10,433.88, 14,398.68 and 5,718.21

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Solution

The fourth proportional to 10,433.88, 14,398.68 and 5,718.21 is: 7,891.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,433.88 : 14,398.68 = 5,718.21 : x
  2. Step 2: Convert to fraction form
    10,433.88/14,398.68 = 5,718.21/x
  3. Step 3: Cross multiply
    10,433.88x = 14,398.68 × 5,718.21
  4. Step 4: Simplify right side
    10,433.88x = 82,334,675.96
  5. Step 5: Solve for x
    x = 82,334,675.96/10,433.88
  6. Step 6: Final answer
    x = 7,891.09

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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.