Home / 13,670.72-20,501.76-4,905.44

Finding the Fourth Proportional to 13,670.72, 20,501.76 and 4,905.44

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Solution

The fourth proportional to 13,670.72, 20,501.76 and 4,905.44 is: 7,356.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,670.72 : 20,501.76 = 4,905.44 : x
  2. Step 2: Convert to fraction form
    13,670.72/20,501.76 = 4,905.44/x
  3. Step 3: Cross multiply
    13,670.72x = 20,501.76 × 4,905.44
  4. Step 4: Simplify right side
    13,670.72x = 100,570,153.57
  5. Step 5: Solve for x
    x = 100,570,153.57/13,670.72
  6. Step 6: Final answer
    x = 7,356.61

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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.