Home / 13,672.14-18,867.55-7,384.52

Finding the Fourth Proportional to 13,672.14, 18,867.55 and 7,384.52

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Solution

The fourth proportional to 13,672.14, 18,867.55 and 7,384.52 is: 10,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,672.14 : 18,867.55 = 7,384.52 : x
  2. Step 2: Convert to fraction form
    13,672.14/18,867.55 = 7,384.52/x
  3. Step 3: Cross multiply
    13,672.14x = 18,867.55 × 7,384.52
  4. Step 4: Simplify right side
    13,672.14x = 139,327,800.33
  5. Step 5: Solve for x
    x = 139,327,800.33/13,672.14
  6. Step 6: Final answer
    x = 10,190.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.