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Finding the Fourth Proportional to 8,579.68, 11,839.68 and 4,853.68

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Solution

The fourth proportional to 8,579.68, 11,839.68 and 4,853.68 is: 6,697.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.68 : 11,839.68 = 4,853.68 : x
  2. Step 2: Convert to fraction form
    8,579.68/11,839.68 = 4,853.68/x
  3. Step 3: Cross multiply
    8,579.68x = 11,839.68 × 4,853.68
  4. Step 4: Simplify right side
    8,579.68x = 57,466,018.02
  5. Step 5: Solve for x
    x = 57,466,018.02/8,579.68
  6. Step 6: Final answer
    x = 6,697.92

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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.