Home / 15,406.25-23,105.82-4,313.72

Finding the Fourth Proportional to 15,406.25, 23,105.82 and 4,313.72

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Solution

The fourth proportional to 15,406.25, 23,105.82 and 4,313.72 is: 6,469.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406.25 : 23,105.82 = 4,313.72 : x
  2. Step 2: Convert to fraction form
    15,406.25/23,105.82 = 4,313.72/x
  3. Step 3: Cross multiply
    15,406.25x = 23,105.82 × 4,313.72
  4. Step 4: Simplify right side
    15,406.25x = 99,671,922.32
  5. Step 5: Solve for x
    x = 99,671,922.32/15,406.25
  6. Step 6: Final answer
    x = 6,469.58

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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.