Home / 15,640.54-23,456.70-5,782.64

Finding the Fourth Proportional to 15,640.54, 23,456.70 and 5,782.64

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Solution

The fourth proportional to 15,640.54, 23,456.70 and 5,782.64 is: 8,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.54 : 23,456.70 = 5,782.64 : x
  2. Step 2: Convert to fraction form
    15,640.54/23,456.70 = 5,782.64/x
  3. Step 3: Cross multiply
    15,640.54x = 23,456.70 × 5,782.64
  4. Step 4: Simplify right side
    15,640.54x = 135,641,534.40
  5. Step 5: Solve for x
    x = 135,641,534.40/15,640.54
  6. Step 6: Final answer
    x = 8,672.43

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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.