Home / 18,212.79-25,132.06-13,435.33

Finding the Fourth Proportional to 18,212.79, 25,132.06 and 13,435.33

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Solution

The fourth proportional to 18,212.79, 25,132.06 and 13,435.33 is: 18,539.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212.79 : 25,132.06 = 13,435.33 : x
  2. Step 2: Convert to fraction form
    18,212.79/25,132.06 = 13,435.33/x
  3. Step 3: Cross multiply
    18,212.79x = 25,132.06 × 13,435.33
  4. Step 4: Simplify right side
    18,212.79x = 337,657,519.68
  5. Step 5: Solve for x
    x = 337,657,519.68/18,212.79
  6. Step 6: Final answer
    x = 18,539.58

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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.