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Finding the Fourth Proportional to 8,883.68, 13,325.64 and 8,613.05

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Solution

The fourth proportional to 8,883.68, 13,325.64 and 8,613.05 is: 12,919.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.68 : 13,325.64 = 8,613.05 : x
  2. Step 2: Convert to fraction form
    8,883.68/13,325.64 = 8,613.05/x
  3. Step 3: Cross multiply
    8,883.68x = 13,325.64 × 8,613.05
  4. Step 4: Simplify right side
    8,883.68x = 114,774,336.97
  5. Step 5: Solve for x
    x = 114,774,336.97/8,883.68
  6. Step 6: Final answer
    x = 12,919.69

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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.