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Finding the Fourth Proportional to 8,684.64, 13,030.08 and 3,416.73

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Solution

The fourth proportional to 8,684.64, 13,030.08 and 3,416.73 is: 5,126.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.64 : 13,030.08 = 3,416.73 : x
  2. Step 2: Convert to fraction form
    8,684.64/13,030.08 = 3,416.73/x
  3. Step 3: Cross multiply
    8,684.64x = 13,030.08 × 3,416.73
  4. Step 4: Simplify right side
    8,684.64x = 44,520,265.24
  5. Step 5: Solve for x
    x = 44,520,265.24/8,684.64
  6. Step 6: Final answer
    x = 5,126.32

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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.