Home / 18,972.60-28,458.30-8,584.36

Finding the Fourth Proportional to 18,972.60, 28,458.30 and 8,584.36

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Solution

The fourth proportional to 18,972.60, 28,458.30 and 8,584.36 is: 12,876.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.60 : 28,458.30 = 8,584.36 : x
  2. Step 2: Convert to fraction form
    18,972.60/28,458.30 = 8,584.36/x
  3. Step 3: Cross multiply
    18,972.60x = 28,458.30 × 8,584.36
  4. Step 4: Simplify right side
    18,972.60x = 244,296,292.19
  5. Step 5: Solve for x
    x = 244,296,292.19/18,972.60
  6. Step 6: Final answer
    x = 12,876.27

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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.