Home / 12,282.81-18,425.57-3,519.15

Finding the Fourth Proportional to 12,282.81, 18,425.57 and 3,519.15

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Solution

The fourth proportional to 12,282.81, 18,425.57 and 3,519.15 is: 5,279.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.81 : 18,425.57 = 3,519.15 : x
  2. Step 2: Convert to fraction form
    12,282.81/18,425.57 = 3,519.15/x
  3. Step 3: Cross multiply
    12,282.81x = 18,425.57 × 3,519.15
  4. Step 4: Simplify right side
    12,282.81x = 64,842,327.07
  5. Step 5: Solve for x
    x = 64,842,327.07/12,282.81
  6. Step 6: Final answer
    x = 5,279.11

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.