Home / 13,266.76-18,309.54-8,234.20

Finding the Fourth Proportional to 13,266.76, 18,309.54 and 8,234.20

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Solution

The fourth proportional to 13,266.76, 18,309.54 and 8,234.20 is: 11,364.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.76 : 18,309.54 = 8,234.20 : x
  2. Step 2: Convert to fraction form
    13,266.76/18,309.54 = 8,234.20/x
  3. Step 3: Cross multiply
    13,266.76x = 18,309.54 × 8,234.20
  4. Step 4: Simplify right side
    13,266.76x = 150,764,414.27
  5. Step 5: Solve for x
    x = 150,764,414.27/13,266.76
  6. Step 6: Final answer
    x = 11,364.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.