Home / 18,968.58-28,456.11-5,819.58

Finding the Fourth Proportional to 18,968.58, 28,456.11 and 5,819.58

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Solution

The fourth proportional to 18,968.58, 28,456.11 and 5,819.58 is: 8,730.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.58 : 28,456.11 = 5,819.58 : x
  2. Step 2: Convert to fraction form
    18,968.58/28,456.11 = 5,819.58/x
  3. Step 3: Cross multiply
    18,968.58x = 28,456.11 × 5,819.58
  4. Step 4: Simplify right side
    18,968.58x = 165,602,608.63
  5. Step 5: Solve for x
    x = 165,602,608.63/18,968.58
  6. Step 6: Final answer
    x = 8,730.36

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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.