Home / 19,201.59-28,815.36-6,721.72

Finding the Fourth Proportional to 19,201.59, 28,815.36 and 6,721.72

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Solution

The fourth proportional to 19,201.59, 28,815.36 and 6,721.72 is: 10,087.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,201.59 : 28,815.36 = 6,721.72 : x
  2. Step 2: Convert to fraction form
    19,201.59/28,815.36 = 6,721.72/x
  3. Step 3: Cross multiply
    19,201.59x = 28,815.36 × 6,721.72
  4. Step 4: Simplify right side
    19,201.59x = 193,688,781.62
  5. Step 5: Solve for x
    x = 193,688,781.62/19,201.59
  6. Step 6: Final answer
    x = 10,087.12

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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.