Home / 15,145.37-22,721.70-4,757.12

Finding the Fourth Proportional to 15,145.37, 22,721.70 and 4,757.12

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Solution

The fourth proportional to 15,145.37, 22,721.70 and 4,757.12 is: 7,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,145.37 : 22,721.70 = 4,757.12 : x
  2. Step 2: Convert to fraction form
    15,145.37/22,721.70 = 4,757.12/x
  3. Step 3: Cross multiply
    15,145.37x = 22,721.70 × 4,757.12
  4. Step 4: Simplify right side
    15,145.37x = 108,089,739.90
  5. Step 5: Solve for x
    x = 108,089,739.90/15,145.37
  6. Step 6: Final answer
    x = 7,136.82

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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.