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Finding the Fourth Proportional to 10,393.97, 14,343.72 and 5,678.35

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Solution

The fourth proportional to 10,393.97, 14,343.72 and 5,678.35 is: 7,836.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,393.97 : 14,343.72 = 5,678.35 : x
  2. Step 2: Convert to fraction form
    10,393.97/14,343.72 = 5,678.35/x
  3. Step 3: Cross multiply
    10,393.97x = 14,343.72 × 5,678.35
  4. Step 4: Simplify right side
    10,393.97x = 81,448,605.31
  5. Step 5: Solve for x
    x = 81,448,605.31/10,393.97
  6. Step 6: Final answer
    x = 7,836.14

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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.