Home / 11,465.43-15,822.69-6,429.71

Finding the Fourth Proportional to 11,465.43, 15,822.69 and 6,429.71

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Solution

The fourth proportional to 11,465.43, 15,822.69 and 6,429.71 is: 8,873.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,465.43 : 15,822.69 = 6,429.71 : x
  2. Step 2: Convert to fraction form
    11,465.43/15,822.69 = 6,429.71/x
  3. Step 3: Cross multiply
    11,465.43x = 15,822.69 × 6,429.71
  4. Step 4: Simplify right side
    11,465.43x = 101,735,308.12
  5. Step 5: Solve for x
    x = 101,735,308.12/11,465.43
  6. Step 6: Final answer
    x = 8,873.22

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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.