Home / 15,135.75-22,704.44-4,748.31

Finding the Fourth Proportional to 15,135.75, 22,704.44 and 4,748.31

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Solution

The fourth proportional to 15,135.75, 22,704.44 and 4,748.31 is: 7,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,135.75 : 22,704.44 = 4,748.31 : x
  2. Step 2: Convert to fraction form
    15,135.75/22,704.44 = 4,748.31/x
  3. Step 3: Cross multiply
    15,135.75x = 22,704.44 × 4,748.31
  4. Step 4: Simplify right side
    15,135.75x = 107,807,695.75
  5. Step 5: Solve for x
    x = 107,807,695.75/15,135.75
  6. Step 6: Final answer
    x = 7,122.72

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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.