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Finding the Fourth Proportional to 17,937.96, 26,915.72 and 12,706.60

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Solution

The fourth proportional to 17,937.96, 26,915.72 and 12,706.60 is: 19,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,937.96 : 26,915.72 = 12,706.60 : x
  2. Step 2: Convert to fraction form
    17,937.96/26,915.72 = 12,706.60/x
  3. Step 3: Cross multiply
    17,937.96x = 26,915.72 × 12,706.60
  4. Step 4: Simplify right side
    17,937.96x = 342,007,287.75
  5. Step 5: Solve for x
    x = 342,007,287.75/17,937.96
  6. Step 6: Final answer
    x = 19,066.12

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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.