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Finding the Fourth Proportional to 9,011.60, 13,517.40 and 8,464.40

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Solution

The fourth proportional to 9,011.60, 13,517.40 and 8,464.40 is: 12,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.60 : 13,517.40 = 8,464.40 : x
  2. Step 2: Convert to fraction form
    9,011.60/13,517.40 = 8,464.40/x
  3. Step 3: Cross multiply
    9,011.60x = 13,517.40 × 8,464.40
  4. Step 4: Simplify right side
    9,011.60x = 114,416,680.56
  5. Step 5: Solve for x
    x = 114,416,680.56/9,011.60
  6. Step 6: Final answer
    x = 12,696.60

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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.