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Finding the Fourth Proportional to 12,763.94, 17,611.65 and 7,457.73

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Solution

The fourth proportional to 12,763.94, 17,611.65 and 7,457.73 is: 10,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.94 : 17,611.65 = 7,457.73 : x
  2. Step 2: Convert to fraction form
    12,763.94/17,611.65 = 7,457.73/x
  3. Step 3: Cross multiply
    12,763.94x = 17,611.65 × 7,457.73
  4. Step 4: Simplify right side
    12,763.94x = 131,342,930.55
  5. Step 5: Solve for x
    x = 131,342,930.55/12,763.94
  6. Step 6: Final answer
    x = 10,290.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.