Home / 18,404.31-25,398.96-10,855.07

Finding the Fourth Proportional to 18,404.31, 25,398.96 and 10,855.07

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Solution

The fourth proportional to 18,404.31, 25,398.96 and 10,855.07 is: 14,980.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,404.31 : 25,398.96 = 10,855.07 : x
  2. Step 2: Convert to fraction form
    18,404.31/25,398.96 = 10,855.07/x
  3. Step 3: Cross multiply
    18,404.31x = 25,398.96 × 10,855.07
  4. Step 4: Simplify right side
    18,404.31x = 275,707,361.73
  5. Step 5: Solve for x
    x = 275,707,361.73/18,404.31
  6. Step 6: Final answer
    x = 14,980.59

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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.