Home / 18,677.04-28,012.68-8,286.96

Finding the Fourth Proportional to 18,677.04, 28,012.68 and 8,286.96

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Solution

The fourth proportional to 18,677.04, 28,012.68 and 8,286.96 is: 12,429.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.04 : 28,012.68 = 8,286.96 : x
  2. Step 2: Convert to fraction form
    18,677.04/28,012.68 = 8,286.96/x
  3. Step 3: Cross multiply
    18,677.04x = 28,012.68 × 8,286.96
  4. Step 4: Simplify right side
    18,677.04x = 232,139,958.65
  5. Step 5: Solve for x
    x = 232,139,958.65/18,677.04
  6. Step 6: Final answer
    x = 12,429.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.