Home / 19,201.50-28,815.23-6,721.64

Finding the Fourth Proportional to 19,201.50, 28,815.23 and 6,721.64

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Solution

The fourth proportional to 19,201.50, 28,815.23 and 6,721.64 is: 10,087.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.50 : 28,815.23 = 6,721.64 : x
  2. Step 2: Convert to fraction form
    19,201.50/28,815.23 = 6,721.64/x
  3. Step 3: Cross multiply
    19,201.50x = 28,815.23 × 6,721.64
  4. Step 4: Simplify right side
    19,201.50x = 193,685,641.01
  5. Step 5: Solve for x
    x = 193,685,641.01/19,201.50
  6. Step 6: Final answer
    x = 10,087.01

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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.