Home / 10,391.63-14,340.44-5,675.91

Finding the Fourth Proportional to 10,391.63, 14,340.44 and 5,675.91

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Solution

The fourth proportional to 10,391.63, 14,340.44 and 5,675.91 is: 7,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.63 : 14,340.44 = 5,675.91 : x
  2. Step 2: Convert to fraction form
    10,391.63/14,340.44 = 5,675.91/x
  3. Step 3: Cross multiply
    10,391.63x = 14,340.44 × 5,675.91
  4. Step 4: Simplify right side
    10,391.63x = 81,395,007.21
  5. Step 5: Solve for x
    x = 81,395,007.21/10,391.63
  6. Step 6: Final answer
    x = 7,832.75

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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.