Home / 18,723.40-28,089.42-5,576.68

Finding the Fourth Proportional to 18,723.40, 28,089.42 and 5,576.68

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Solution

The fourth proportional to 18,723.40, 28,089.42 and 5,576.68 is: 8,366.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723.40 : 28,089.42 = 5,576.68 : x
  2. Step 2: Convert to fraction form
    18,723.40/28,089.42 = 5,576.68/x
  3. Step 3: Cross multiply
    18,723.40x = 28,089.42 × 5,576.68
  4. Step 4: Simplify right side
    18,723.40x = 156,645,706.73
  5. Step 5: Solve for x
    x = 156,645,706.73/18,723.40
  6. Step 6: Final answer
    x = 8,366.31

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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.