Home / 18,951.72-28,411.40-7,273.32

Finding the Fourth Proportional to 18,951.72, 28,411.40 and 7,273.32

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Solution

The fourth proportional to 18,951.72, 28,411.40 and 7,273.32 is: 10,903.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,951.72 : 28,411.40 = 7,273.32 : x
  2. Step 2: Convert to fraction form
    18,951.72/28,411.40 = 7,273.32/x
  3. Step 3: Cross multiply
    18,951.72x = 28,411.40 × 7,273.32
  4. Step 4: Simplify right side
    18,951.72x = 206,645,203.85
  5. Step 5: Solve for x
    x = 206,645,203.85/18,951.72
  6. Step 6: Final answer
    x = 10,903.77

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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.