Home / 19,801.05-29,701.61-8,122.47

Finding the Fourth Proportional to 19,801.05, 29,701.61 and 8,122.47

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Solution

The fourth proportional to 19,801.05, 29,701.61 and 8,122.47 is: 12,183.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,801.05 : 29,701.61 = 8,122.47 : x
  2. Step 2: Convert to fraction form
    19,801.05/29,701.61 = 8,122.47/x
  3. Step 3: Cross multiply
    19,801.05x = 29,701.61 × 8,122.47
  4. Step 4: Simplify right side
    19,801.05x = 241,250,395.56
  5. Step 5: Solve for x
    x = 241,250,395.56/19,801.05
  6. Step 6: Final answer
    x = 12,183.72

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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.