Home / 19,121.76-28,682.64-5,975.17

Finding the Fourth Proportional to 19,121.76, 28,682.64 and 5,975.17

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Solution

The fourth proportional to 19,121.76, 28,682.64 and 5,975.17 is: 8,962.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,121.76 : 28,682.64 = 5,975.17 : x
  2. Step 2: Convert to fraction form
    19,121.76/28,682.64 = 5,975.17/x
  3. Step 3: Cross multiply
    19,121.76x = 28,682.64 × 5,975.17
  4. Step 4: Simplify right side
    19,121.76x = 171,383,650.05
  5. Step 5: Solve for x
    x = 171,383,650.05/19,121.76
  6. Step 6: Final answer
    x = 8,962.76

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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.