Home / 18,131.88-27,191.31-6,282.45

Finding the Fourth Proportional to 18,131.88, 27,191.31 and 6,282.45

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Solution

The fourth proportional to 18,131.88, 27,191.31 and 6,282.45 is: 9,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,131.88 : 27,191.31 = 6,282.45 : x
  2. Step 2: Convert to fraction form
    18,131.88/27,191.31 = 6,282.45/x
  3. Step 3: Cross multiply
    18,131.88x = 27,191.31 × 6,282.45
  4. Step 4: Simplify right side
    18,131.88x = 170,828,045.51
  5. Step 5: Solve for x
    x = 170,828,045.51/18,131.88
  6. Step 6: Final answer
    x = 9,421.42

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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.