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Finding the Fourth Proportional to 12,679.42, 17,494.08 and 7,301.62

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Solution

The fourth proportional to 12,679.42, 17,494.08 and 7,301.62 is: 10,074.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.42 : 17,494.08 = 7,301.62 : x
  2. Step 2: Convert to fraction form
    12,679.42/17,494.08 = 7,301.62/x
  3. Step 3: Cross multiply
    12,679.42x = 17,494.08 × 7,301.62
  4. Step 4: Simplify right side
    12,679.42x = 127,735,124.41
  5. Step 5: Solve for x
    x = 127,735,124.41/12,679.42
  6. Step 6: Final answer
    x = 10,074.21

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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.