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Finding the Fourth Proportional to 9,967.84, 13,752.60 and 5,775.28

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Solution

The fourth proportional to 9,967.84, 13,752.60 and 5,775.28 is: 7,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,967.84 : 13,752.60 = 5,775.28 : x
  2. Step 2: Convert to fraction form
    9,967.84/13,752.60 = 5,775.28/x
  3. Step 3: Cross multiply
    9,967.84x = 13,752.60 × 5,775.28
  4. Step 4: Simplify right side
    9,967.84x = 79,425,115.73
  5. Step 5: Solve for x
    x = 79,425,115.73/9,967.84
  6. Step 6: Final answer
    x = 7,968.14

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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.