Home / 18,764.23-28,154.10-8,228.80

Finding the Fourth Proportional to 18,764.23, 28,154.10 and 8,228.80

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Solution

The fourth proportional to 18,764.23, 28,154.10 and 8,228.80 is: 12,346.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.23 : 28,154.10 = 8,228.80 : x
  2. Step 2: Convert to fraction form
    18,764.23/28,154.10 = 8,228.80/x
  3. Step 3: Cross multiply
    18,764.23x = 28,154.10 × 8,228.80
  4. Step 4: Simplify right side
    18,764.23x = 231,674,458.08
  5. Step 5: Solve for x
    x = 231,674,458.08/18,764.23
  6. Step 6: Final answer
    x = 12,346.60

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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.