Home / 13,532.47-20,299.92-4,172.61

Finding the Fourth Proportional to 13,532.47, 20,299.92 and 4,172.61

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Solution

The fourth proportional to 13,532.47, 20,299.92 and 4,172.61 is: 6,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,532.47 : 20,299.92 = 4,172.61 : x
  2. Step 2: Convert to fraction form
    13,532.47/20,299.92 = 4,172.61/x
  3. Step 3: Cross multiply
    13,532.47x = 20,299.92 × 4,172.61
  4. Step 4: Simplify right side
    13,532.47x = 84,703,709.67
  5. Step 5: Solve for x
    x = 84,703,709.67/13,532.47
  6. Step 6: Final answer
    x = 6,259.30

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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.