Home / 13,351.80-18,419.70-8,043.57

Finding the Fourth Proportional to 13,351.80, 18,419.70 and 8,043.57

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Solution

The fourth proportional to 13,351.80, 18,419.70 and 8,043.57 is: 11,096.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.80 : 18,419.70 = 8,043.57 : x
  2. Step 2: Convert to fraction form
    13,351.80/18,419.70 = 8,043.57/x
  3. Step 3: Cross multiply
    13,351.80x = 18,419.70 × 8,043.57
  4. Step 4: Simplify right side
    13,351.80x = 148,160,146.33
  5. Step 5: Solve for x
    x = 148,160,146.33/13,351.80
  6. Step 6: Final answer
    x = 11,096.64

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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.