Home / 8,122.99-11,209.67-4,586.12

Finding the Fourth Proportional to 8,122.99, 11,209.67 and 4,586.12

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Solution

The fourth proportional to 8,122.99, 11,209.67 and 4,586.12 is: 6,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.99 : 11,209.67 = 4,586.12 : x
  2. Step 2: Convert to fraction form
    8,122.99/11,209.67 = 4,586.12/x
  3. Step 3: Cross multiply
    8,122.99x = 11,209.67 × 4,586.12
  4. Step 4: Simplify right side
    8,122.99x = 51,408,891.78
  5. Step 5: Solve for x
    x = 51,408,891.78/8,122.99
  6. Step 6: Final answer
    x = 6,328.82

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Half scale
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Double scale
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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.