Home / 13,115.39-19,670.05-3,753.67

Finding the Fourth Proportional to 13,115.39, 19,670.05 and 3,753.67

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Solution

The fourth proportional to 13,115.39, 19,670.05 and 3,753.67 is: 5,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,115.39 : 19,670.05 = 3,753.67 : x
  2. Step 2: Convert to fraction form
    13,115.39/19,670.05 = 3,753.67/x
  3. Step 3: Cross multiply
    13,115.39x = 19,670.05 × 3,753.67
  4. Step 4: Simplify right side
    13,115.39x = 73,834,876.58
  5. Step 5: Solve for x
    x = 73,834,876.58/13,115.39
  6. Step 6: Final answer
    x = 5,629.64

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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.