Home / 18,684.24-28,020.88-6,994.72

Finding the Fourth Proportional to 18,684.24, 28,020.88 and 6,994.72

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Solution

The fourth proportional to 18,684.24, 28,020.88 and 6,994.72 is: 10,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684.24 : 28,020.88 = 6,994.72 : x
  2. Step 2: Convert to fraction form
    18,684.24/28,020.88 = 6,994.72/x
  3. Step 3: Cross multiply
    18,684.24x = 28,020.88 × 6,994.72
  4. Step 4: Simplify right side
    18,684.24x = 195,998,209.75
  5. Step 5: Solve for x
    x = 195,998,209.75/18,684.24
  6. Step 6: Final answer
    x = 10,490.03

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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.