Home / 18,861.83-28,296.20-6,212.31

Finding the Fourth Proportional to 18,861.83, 28,296.20 and 6,212.31

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Solution

The fourth proportional to 18,861.83, 28,296.20 and 6,212.31 is: 9,319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,861.83 : 28,296.20 = 6,212.31 : x
  2. Step 2: Convert to fraction form
    18,861.83/28,296.20 = 6,212.31/x
  3. Step 3: Cross multiply
    18,861.83x = 28,296.20 × 6,212.31
  4. Step 4: Simplify right side
    18,861.83x = 175,784,675.64
  5. Step 5: Solve for x
    x = 175,784,675.64/18,861.83
  6. Step 6: Final answer
    x = 9,319.60

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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.