Home / 18,709.45-28,065.83-6,229.58

Finding the Fourth Proportional to 18,709.45, 28,065.83 and 6,229.58

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Solution

The fourth proportional to 18,709.45, 28,065.83 and 6,229.58 is: 9,344.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,709.45 : 28,065.83 = 6,229.58 : x
  2. Step 2: Convert to fraction form
    18,709.45/28,065.83 = 6,229.58/x
  3. Step 3: Cross multiply
    18,709.45x = 28,065.83 × 6,229.58
  4. Step 4: Simplify right side
    18,709.45x = 174,838,161.77
  5. Step 5: Solve for x
    x = 174,838,161.77/18,709.45
  6. Step 6: Final answer
    x = 9,344.91

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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.