Home / 12,359.68-18,536.19-3,474.49

Finding the Fourth Proportional to 12,359.68, 18,536.19 and 3,474.49

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Solution

The fourth proportional to 12,359.68, 18,536.19 and 3,474.49 is: 5,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.68 : 18,536.19 = 3,474.49 : x
  2. Step 2: Convert to fraction form
    12,359.68/18,536.19 = 3,474.49/x
  3. Step 3: Cross multiply
    12,359.68x = 18,536.19 × 3,474.49
  4. Step 4: Simplify right side
    12,359.68x = 64,403,806.79
  5. Step 5: Solve for x
    x = 64,403,806.79/12,359.68
  6. Step 6: Final answer
    x = 5,210.80

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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.