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Finding the Fourth Proportional to 8,322.62, 12,483.18 and 2,775.74

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Solution

The fourth proportional to 8,322.62, 12,483.18 and 2,775.74 is: 4,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.62 : 12,483.18 = 2,775.74 : x
  2. Step 2: Convert to fraction form
    8,322.62/12,483.18 = 2,775.74/x
  3. Step 3: Cross multiply
    8,322.62x = 12,483.18 × 2,775.74
  4. Step 4: Simplify right side
    8,322.62x = 34,649,999.64
  5. Step 5: Solve for x
    x = 34,649,999.64/8,322.62
  6. Step 6: Final answer
    x = 4,163.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.