Home / 12,286.27-16,955.41-6,981.31

Finding the Fourth Proportional to 12,286.27, 16,955.41 and 6,981.31

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Solution

The fourth proportional to 12,286.27, 16,955.41 and 6,981.31 is: 9,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.27 : 16,955.41 = 6,981.31 : x
  2. Step 2: Convert to fraction form
    12,286.27/16,955.41 = 6,981.31/x
  3. Step 3: Cross multiply
    12,286.27x = 16,955.41 × 6,981.31
  4. Step 4: Simplify right side
    12,286.27x = 118,370,875.21
  5. Step 5: Solve for x
    x = 118,370,875.21/12,286.27
  6. Step 6: Final answer
    x = 9,634.41

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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.