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Finding the Fourth Proportional to 17,827.60, 26,741.40 and 8,611.60

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Solution

The fourth proportional to 17,827.60, 26,741.40 and 8,611.60 is: 12,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,827.60 : 26,741.40 = 8,611.60 : x
  2. Step 2: Convert to fraction form
    17,827.60/26,741.40 = 8,611.60/x
  3. Step 3: Cross multiply
    17,827.60x = 26,741.40 × 8,611.60
  4. Step 4: Simplify right side
    17,827.60x = 230,286,240.24
  5. Step 5: Solve for x
    x = 230,286,240.24/17,827.60
  6. Step 6: Final answer
    x = 12,917.40

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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.