Home / 13,652.82-20,491.56-11,445.66

Finding the Fourth Proportional to 13,652.82, 20,491.56 and 11,445.66

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Solution

The fourth proportional to 13,652.82, 20,491.56 and 11,445.66 is: 17,178.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,652.82 : 20,491.56 = 11,445.66 : x
  2. Step 2: Convert to fraction form
    13,652.82/20,491.56 = 11,445.66/x
  3. Step 3: Cross multiply
    13,652.82x = 20,491.56 × 11,445.66
  4. Step 4: Simplify right side
    13,652.82x = 234,539,428.63
  5. Step 5: Solve for x
    x = 234,539,428.63/13,652.82
  6. Step 6: Final answer
    x = 17,178.83

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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.