Home / 8,932.72-12,327.48-6,690.64

Finding the Fourth Proportional to 8,932.72, 12,327.48 and 6,690.64

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Solution

The fourth proportional to 8,932.72, 12,327.48 and 6,690.64 is: 9,233.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.72 : 12,327.48 = 6,690.64 : x
  2. Step 2: Convert to fraction form
    8,932.72/12,327.48 = 6,690.64/x
  3. Step 3: Cross multiply
    8,932.72x = 12,327.48 × 6,690.64
  4. Step 4: Simplify right side
    8,932.72x = 82,478,730.79
  5. Step 5: Solve for x
    x = 82,478,730.79/8,932.72
  6. Step 6: Final answer
    x = 9,233.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.