Home / 12,539.27-18,808.94-5,144.45

Finding the Fourth Proportional to 12,539.27, 18,808.94 and 5,144.45

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Solution

The fourth proportional to 12,539.27, 18,808.94 and 5,144.45 is: 7,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.27 : 18,808.94 = 5,144.45 : x
  2. Step 2: Convert to fraction form
    12,539.27/18,808.94 = 5,144.45/x
  3. Step 3: Cross multiply
    12,539.27x = 18,808.94 × 5,144.45
  4. Step 4: Simplify right side
    12,539.27x = 96,761,570.20
  5. Step 5: Solve for x
    x = 96,761,570.20/12,539.27
  6. Step 6: Final answer
    x = 7,716.68

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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.