Home / 13,432.75-20,133.92-6,845.02

Finding the Fourth Proportional to 13,432.75, 20,133.92 and 6,845.02

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Solution

The fourth proportional to 13,432.75, 20,133.92 and 6,845.02 is: 10,259.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.75 : 20,133.92 = 6,845.02 : x
  2. Step 2: Convert to fraction form
    13,432.75/20,133.92 = 6,845.02/x
  3. Step 3: Cross multiply
    13,432.75x = 20,133.92 × 6,845.02
  4. Step 4: Simplify right side
    13,432.75x = 137,817,085.08
  5. Step 5: Solve for x
    x = 137,817,085.08/13,432.75
  6. Step 6: Final answer
    x = 10,259.78

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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.