Home / 18,970.18-28,452.12-5,819.02

Finding the Fourth Proportional to 18,970.18, 28,452.12 and 5,819.02

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Solution

The fourth proportional to 18,970.18, 28,452.12 and 5,819.02 is: 8,727.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.18 : 28,452.12 = 5,819.02 : x
  2. Step 2: Convert to fraction form
    18,970.18/28,452.12 = 5,819.02/x
  3. Step 3: Cross multiply
    18,970.18x = 28,452.12 × 5,819.02
  4. Step 4: Simplify right side
    18,970.18x = 165,563,455.32
  5. Step 5: Solve for x
    x = 165,563,455.32/18,970.18
  6. Step 6: Final answer
    x = 8,727.56

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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.