Home / 19,013.72-28,504.58-8,622.68

Finding the Fourth Proportional to 19,013.72, 28,504.58 and 8,622.68

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Solution

The fourth proportional to 19,013.72, 28,504.58 and 8,622.68 is: 12,926.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.72 : 28,504.58 = 8,622.68 : x
  2. Step 2: Convert to fraction form
    19,013.72/28,504.58 = 8,622.68/x
  3. Step 3: Cross multiply
    19,013.72x = 28,504.58 × 8,622.68
  4. Step 4: Simplify right side
    19,013.72x = 245,785,871.87
  5. Step 5: Solve for x
    x = 245,785,871.87/19,013.72
  6. Step 6: Final answer
    x = 12,926.76

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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.