Home / 13,440.32-20,163.82-4,675.31

Finding the Fourth Proportional to 13,440.32, 20,163.82 and 4,675.31

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Solution

The fourth proportional to 13,440.32, 20,163.82 and 4,675.31 is: 7,014.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.32 : 20,163.82 = 4,675.31 : x
  2. Step 2: Convert to fraction form
    13,440.32/20,163.82 = 4,675.31/x
  3. Step 3: Cross multiply
    13,440.32x = 20,163.82 × 4,675.31
  4. Step 4: Simplify right side
    13,440.32x = 94,272,109.28
  5. Step 5: Solve for x
    x = 94,272,109.28/13,440.32
  6. Step 6: Final answer
    x = 7,014.13

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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.