Home / 12,387.24-18,583.69-5,368.43

Finding the Fourth Proportional to 12,387.24, 18,583.69 and 5,368.43

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Solution

The fourth proportional to 12,387.24, 18,583.69 and 5,368.43 is: 8,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387.24 : 18,583.69 = 5,368.43 : x
  2. Step 2: Convert to fraction form
    12,387.24/18,583.69 = 5,368.43/x
  3. Step 3: Cross multiply
    12,387.24x = 18,583.69 × 5,368.43
  4. Step 4: Simplify right side
    12,387.24x = 99,765,145.99
  5. Step 5: Solve for x
    x = 99,765,145.99/12,387.24
  6. Step 6: Final answer
    x = 8,053.87

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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.