Home / 18,934.64-28,402.04-5,786.96

Finding the Fourth Proportional to 18,934.64, 28,402.04 and 5,786.96

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Solution

The fourth proportional to 18,934.64, 28,402.04 and 5,786.96 is: 8,680.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.64 : 28,402.04 = 5,786.96 : x
  2. Step 2: Convert to fraction form
    18,934.64/28,402.04 = 5,786.96/x
  3. Step 3: Cross multiply
    18,934.64x = 28,402.04 × 5,786.96
  4. Step 4: Simplify right side
    18,934.64x = 164,361,511.47
  5. Step 5: Solve for x
    x = 164,361,511.47/18,934.64
  6. Step 6: Final answer
    x = 8,680.47

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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.