Home / 13,943.80-19,241.58-12,829.24

Finding the Fourth Proportional to 13,943.80, 19,241.58 and 12,829.24

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Solution

The fourth proportional to 13,943.80, 19,241.58 and 12,829.24 is: 17,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.80 : 19,241.58 = 12,829.24 : x
  2. Step 2: Convert to fraction form
    13,943.80/19,241.58 = 12,829.24/x
  3. Step 3: Cross multiply
    13,943.80x = 19,241.58 × 12,829.24
  4. Step 4: Simplify right side
    13,943.80x = 246,854,847.80
  5. Step 5: Solve for x
    x = 246,854,847.80/13,943.80
  6. Step 6: Final answer
    x = 17,703.56

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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.