Home / 8,178.64-12,257.08-4,475.28

Finding the Fourth Proportional to 8,178.64, 12,257.08 and 4,475.28

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Solution

The fourth proportional to 8,178.64, 12,257.08 and 4,475.28 is: 6,706.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.64 : 12,257.08 = 4,475.28 : x
  2. Step 2: Convert to fraction form
    8,178.64/12,257.08 = 4,475.28/x
  3. Step 3: Cross multiply
    8,178.64x = 12,257.08 × 4,475.28
  4. Step 4: Simplify right side
    8,178.64x = 54,853,864.98
  5. Step 5: Solve for x
    x = 54,853,864.98/8,178.64
  6. Step 6: Final answer
    x = 6,706.97

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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.