Home / 12,365.31-18,548-3,600.44

Finding the Fourth Proportional to 12,365.31, 18,548 and 3,600.44

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Solution

The fourth proportional to 12,365.31, 18,548 and 3,600.44 is: 5,400.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,365.31 : 18,548 = 3,600.44 : x
  2. Step 2: Convert to fraction form
    12,365.31/18,548 = 3,600.44/x
  3. Step 3: Cross multiply
    12,365.31x = 18,548 × 3,600.44
  4. Step 4: Simplify right side
    12,365.31x = 66,780,961.12
  5. Step 5: Solve for x
    x = 66,780,961.12/12,365.31
  6. Step 6: Final answer
    x = 5,400.67

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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.