Home / 10,720.75-16,081.56-2,929.54

Finding the Fourth Proportional to 10,720.75, 16,081.56 and 2,929.54

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Solution

The fourth proportional to 10,720.75, 16,081.56 and 2,929.54 is: 4,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.75 : 16,081.56 = 2,929.54 : x
  2. Step 2: Convert to fraction form
    10,720.75/16,081.56 = 2,929.54/x
  3. Step 3: Cross multiply
    10,720.75x = 16,081.56 × 2,929.54
  4. Step 4: Simplify right side
    10,720.75x = 47,111,573.28
  5. Step 5: Solve for x
    x = 47,111,573.28/10,720.75
  6. Step 6: Final answer
    x = 4,394.43

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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.