Home / 12,286.60-16,955.96-6,982.32

Finding the Fourth Proportional to 12,286.60, 16,955.96 and 6,982.32

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Solution

The fourth proportional to 12,286.60, 16,955.96 and 6,982.32 is: 9,635.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.60 : 16,955.96 = 6,982.32 : x
  2. Step 2: Convert to fraction form
    12,286.60/16,955.96 = 6,982.32/x
  3. Step 3: Cross multiply
    12,286.60x = 16,955.96 × 6,982.32
  4. Step 4: Simplify right side
    12,286.60x = 118,391,938.63
  5. Step 5: Solve for x
    x = 118,391,938.63/12,286.60
  6. Step 6: Final answer
    x = 9,635.86

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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.