Home / 8,173.45-11,257.88-6,281.42

Finding the Fourth Proportional to 8,173.45, 11,257.88 and 6,281.42

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Solution

The fourth proportional to 8,173.45, 11,257.88 and 6,281.42 is: 8,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,173.45 : 11,257.88 = 6,281.42 : x
  2. Step 2: Convert to fraction form
    8,173.45/11,257.88 = 6,281.42/x
  3. Step 3: Cross multiply
    8,173.45x = 11,257.88 × 6,281.42
  4. Step 4: Simplify right side
    8,173.45x = 70,715,402.56
  5. Step 5: Solve for x
    x = 70,715,402.56/8,173.45
  6. Step 6: Final answer
    x = 8,651.84

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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.