Home / 13,305.20-18,360.70-8,000.52

Finding the Fourth Proportional to 13,305.20, 18,360.70 and 8,000.52

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Solution

The fourth proportional to 13,305.20, 18,360.70 and 8,000.52 is: 11,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,305.20 : 18,360.70 = 8,000.52 : x
  2. Step 2: Convert to fraction form
    13,305.20/18,360.70 = 8,000.52/x
  3. Step 3: Cross multiply
    13,305.20x = 18,360.70 × 8,000.52
  4. Step 4: Simplify right side
    13,305.20x = 146,895,147.56
  5. Step 5: Solve for x
    x = 146,895,147.56/13,305.20
  6. Step 6: Final answer
    x = 11,040.43

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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.