Home / 18,238.21-25,167.99-10,282.09

Finding the Fourth Proportional to 18,238.21, 25,167.99 and 10,282.09

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Solution

The fourth proportional to 18,238.21, 25,167.99 and 10,282.09 is: 14,188.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.21 : 25,167.99 = 10,282.09 : x
  2. Step 2: Convert to fraction form
    18,238.21/25,167.99 = 10,282.09/x
  3. Step 3: Cross multiply
    18,238.21x = 25,167.99 × 10,282.09
  4. Step 4: Simplify right side
    18,238.21x = 258,779,538.30
  5. Step 5: Solve for x
    x = 258,779,538.30/18,238.21
  6. Step 6: Final answer
    x = 14,188.87

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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.