Home / 12,465.11-18,684.83-5,443.81

Finding the Fourth Proportional to 12,465.11, 18,684.83 and 5,443.81

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Solution

The fourth proportional to 12,465.11, 18,684.83 and 5,443.81 is: 8,160.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.11 : 18,684.83 = 5,443.81 : x
  2. Step 2: Convert to fraction form
    12,465.11/18,684.83 = 5,443.81/x
  3. Step 3: Cross multiply
    12,465.11x = 18,684.83 × 5,443.81
  4. Step 4: Simplify right side
    12,465.11x = 101,716,664.40
  5. Step 5: Solve for x
    x = 101,716,664.40/12,465.11
  6. Step 6: Final answer
    x = 8,160.11

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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.