Home / 8,961.35-12,367.85-5,424.62

Finding the Fourth Proportional to 8,961.35, 12,367.85 and 5,424.62

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Solution

The fourth proportional to 8,961.35, 12,367.85 and 5,424.62 is: 7,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.35 : 12,367.85 = 5,424.62 : x
  2. Step 2: Convert to fraction form
    8,961.35/12,367.85 = 5,424.62/x
  3. Step 3: Cross multiply
    8,961.35x = 12,367.85 × 5,424.62
  4. Step 4: Simplify right side
    8,961.35x = 67,090,797.50
  5. Step 5: Solve for x
    x = 67,090,797.50/8,961.35
  6. Step 6: Final answer
    x = 7,486.69

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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.