Home / 13,244.80-19,883.40-13,147.60

Finding the Fourth Proportional to 13,244.80, 19,883.40 and 13,147.60

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Solution

The fourth proportional to 13,244.80, 19,883.40 and 13,147.60 is: 19,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.80 : 19,883.40 = 13,147.60 : x
  2. Step 2: Convert to fraction form
    13,244.80/19,883.40 = 13,147.60/x
  3. Step 3: Cross multiply
    13,244.80x = 19,883.40 × 13,147.60
  4. Step 4: Simplify right side
    13,244.80x = 261,418,989.84
  5. Step 5: Solve for x
    x = 261,418,989.84/13,244.80
  6. Step 6: Final answer
    x = 19,737.48

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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.