Home / 10,342.74-15,509.36-3,321.38

Finding the Fourth Proportional to 10,342.74, 15,509.36 and 3,321.38

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Solution

The fourth proportional to 10,342.74, 15,509.36 and 3,321.38 is: 4,980.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.74 : 15,509.36 = 3,321.38 : x
  2. Step 2: Convert to fraction form
    10,342.74/15,509.36 = 3,321.38/x
  3. Step 3: Cross multiply
    10,342.74x = 15,509.36 × 3,321.38
  4. Step 4: Simplify right side
    10,342.74x = 51,512,478.12
  5. Step 5: Solve for x
    x = 51,512,478.12/10,342.74
  6. Step 6: Final answer
    x = 4,980.54

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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.