Home / 12,451.48-18,679.96-3,687.08

Finding the Fourth Proportional to 12,451.48, 18,679.96 and 3,687.08

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Solution

The fourth proportional to 12,451.48, 18,679.96 and 3,687.08 is: 5,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,451.48 : 18,679.96 = 3,687.08 : x
  2. Step 2: Convert to fraction form
    12,451.48/18,679.96 = 3,687.08/x
  3. Step 3: Cross multiply
    12,451.48x = 18,679.96 × 3,687.08
  4. Step 4: Simplify right side
    12,451.48x = 68,874,460.29
  5. Step 5: Solve for x
    x = 68,874,460.29/12,451.48
  6. Step 6: Final answer
    x = 5,531.43

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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.