Home / 12,462.94-17,194.45-7,989.16

Finding the Fourth Proportional to 12,462.94, 17,194.45 and 7,989.16

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Solution

The fourth proportional to 12,462.94, 17,194.45 and 7,989.16 is: 11,022.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,462.94 : 17,194.45 = 7,989.16 : x
  2. Step 2: Convert to fraction form
    12,462.94/17,194.45 = 7,989.16/x
  3. Step 3: Cross multiply
    12,462.94x = 17,194.45 × 7,989.16
  4. Step 4: Simplify right side
    12,462.94x = 137,369,170.53
  5. Step 5: Solve for x
    x = 137,369,170.53/12,462.94
  6. Step 6: Final answer
    x = 11,022.21

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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.