Home / 13,509.10-20,264.82-3,648.34

Finding the Fourth Proportional to 13,509.10, 20,264.82 and 3,648.34

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Solution

The fourth proportional to 13,509.10, 20,264.82 and 3,648.34 is: 5,472.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,509.10 : 20,264.82 = 3,648.34 : x
  2. Step 2: Convert to fraction form
    13,509.10/20,264.82 = 3,648.34/x
  3. Step 3: Cross multiply
    13,509.10x = 20,264.82 × 3,648.34
  4. Step 4: Simplify right side
    13,509.10x = 73,932,953.40
  5. Step 5: Solve for x
    x = 73,932,953.40/13,509.10
  6. Step 6: Final answer
    x = 5,472.83

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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.