Home / 12,387.41-18,583.96-5,368.61

Finding the Fourth Proportional to 12,387.41, 18,583.96 and 5,368.61

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Solution

The fourth proportional to 12,387.41, 18,583.96 and 5,368.61 is: 8,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.41 : 18,583.96 = 5,368.61 : x
  2. Step 2: Convert to fraction form
    12,387.41/18,583.96 = 5,368.61/x
  3. Step 3: Cross multiply
    12,387.41x = 18,583.96 × 5,368.61
  4. Step 4: Simplify right side
    12,387.41x = 99,769,950.38
  5. Step 5: Solve for x
    x = 99,769,950.38/12,387.41
  6. Step 6: Final answer
    x = 8,054.14

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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.