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Finding the Fourth Proportional to 8,259.64, 12,389.84 and 3,064.28

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Solution

The fourth proportional to 8,259.64, 12,389.84 and 3,064.28 is: 4,596.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,259.64 : 12,389.84 = 3,064.28 : x
  2. Step 2: Convert to fraction form
    8,259.64/12,389.84 = 3,064.28/x
  3. Step 3: Cross multiply
    8,259.64x = 12,389.84 × 3,064.28
  4. Step 4: Simplify right side
    8,259.64x = 37,965,938.92
  5. Step 5: Solve for x
    x = 37,965,938.92/8,259.64
  6. Step 6: Final answer
    x = 4,596.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.