Home / 18,838.45-28,237.62-8,956.85

Finding the Fourth Proportional to 18,838.45, 28,237.62 and 8,956.85

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Solution

The fourth proportional to 18,838.45, 28,237.62 and 8,956.85 is: 13,425.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,838.45 : 28,237.62 = 8,956.85 : x
  2. Step 2: Convert to fraction form
    18,838.45/28,237.62 = 8,956.85/x
  3. Step 3: Cross multiply
    18,838.45x = 28,237.62 × 8,956.85
  4. Step 4: Simplify right side
    18,838.45x = 252,920,197.29
  5. Step 5: Solve for x
    x = 252,920,197.29/18,838.45
  6. Step 6: Final answer
    x = 13,425.75

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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.