Home / 8,157.24-11,257.20-4,620.42

Finding the Fourth Proportional to 8,157.24, 11,257.20 and 4,620.42

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Solution

The fourth proportional to 8,157.24, 11,257.20 and 4,620.42 is: 6,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.24 : 11,257.20 = 4,620.42 : x
  2. Step 2: Convert to fraction form
    8,157.24/11,257.20 = 4,620.42/x
  3. Step 3: Cross multiply
    8,157.24x = 11,257.20 × 4,620.42
  4. Step 4: Simplify right side
    8,157.24x = 52,012,992.02
  5. Step 5: Solve for x
    x = 52,012,992.02/8,157.24
  6. Step 6: Final answer
    x = 6,376.30

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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.