Home / 13,432.72-20,110.20-11,216.56

Finding the Fourth Proportional to 13,432.72, 20,110.20 and 11,216.56

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Solution

The fourth proportional to 13,432.72, 20,110.20 and 11,216.56 is: 16,792.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.72 : 20,110.20 = 11,216.56 : x
  2. Step 2: Convert to fraction form
    13,432.72/20,110.20 = 11,216.56/x
  3. Step 3: Cross multiply
    13,432.72x = 20,110.20 × 11,216.56
  4. Step 4: Simplify right side
    13,432.72x = 225,567,264.91
  5. Step 5: Solve for x
    x = 225,567,264.91/13,432.72
  6. Step 6: Final answer
    x = 16,792.37

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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.