Home / 13,243.60-18,297.12-12,193.84

Finding the Fourth Proportional to 13,243.60, 18,297.12 and 12,193.84

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Solution

The fourth proportional to 13,243.60, 18,297.12 and 12,193.84 is: 16,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.60 : 18,297.12 = 12,193.84 : x
  2. Step 2: Convert to fraction form
    13,243.60/18,297.12 = 12,193.84/x
  3. Step 3: Cross multiply
    13,243.60x = 18,297.12 × 12,193.84
  4. Step 4: Simplify right side
    13,243.60x = 223,112,153.74
  5. Step 5: Solve for x
    x = 223,112,153.74/13,243.60
  6. Step 6: Final answer
    x = 16,846.79

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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.