Home / 15,425.41-21,286.04-8,709.73

Finding the Fourth Proportional to 15,425.41, 21,286.04 and 8,709.73

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Solution

The fourth proportional to 15,425.41, 21,286.04 and 8,709.73 is: 12,018.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.41 : 21,286.04 = 8,709.73 : x
  2. Step 2: Convert to fraction form
    15,425.41/21,286.04 = 8,709.73/x
  3. Step 3: Cross multiply
    15,425.41x = 21,286.04 × 8,709.73
  4. Step 4: Simplify right side
    15,425.41x = 185,395,613.40
  5. Step 5: Solve for x
    x = 185,395,613.40/15,425.41
  6. Step 6: Final answer
    x = 12,018.84

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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.