Home / 7,731.72-11,577.96-6,479.02

Finding the Fourth Proportional to 7,731.72, 11,577.96 and 6,479.02

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Solution

The fourth proportional to 7,731.72, 11,577.96 and 6,479.02 is: 9,702.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.72 : 11,577.96 = 6,479.02 : x
  2. Step 2: Convert to fraction form
    7,731.72/11,577.96 = 6,479.02/x
  3. Step 3: Cross multiply
    7,731.72x = 11,577.96 × 6,479.02
  4. Step 4: Simplify right side
    7,731.72x = 75,013,847.15
  5. Step 5: Solve for x
    x = 75,013,847.15/7,731.72
  6. Step 6: Final answer
    x = 9,702.09

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1.5x scale

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.