Home / 18,670.40-25,765.04-10,286.88

Finding the Fourth Proportional to 18,670.40, 25,765.04 and 10,286.88

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Solution

The fourth proportional to 18,670.40, 25,765.04 and 10,286.88 is: 14,195.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,670.40 : 25,765.04 = 10,286.88 : x
  2. Step 2: Convert to fraction form
    18,670.40/25,765.04 = 10,286.88/x
  3. Step 3: Cross multiply
    18,670.40x = 25,765.04 × 10,286.88
  4. Step 4: Simplify right side
    18,670.40x = 265,041,874.68
  5. Step 5: Solve for x
    x = 265,041,874.68/18,670.40
  6. Step 6: Final answer
    x = 14,195.83

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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.