Home / 13,905.54-20,843.71-6,503.76

Finding the Fourth Proportional to 13,905.54, 20,843.71 and 6,503.76

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Solution

The fourth proportional to 13,905.54, 20,843.71 and 6,503.76 is: 9,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,905.54 : 20,843.71 = 6,503.76 : x
  2. Step 2: Convert to fraction form
    13,905.54/20,843.71 = 6,503.76/x
  3. Step 3: Cross multiply
    13,905.54x = 20,843.71 × 6,503.76
  4. Step 4: Simplify right side
    13,905.54x = 135,562,487.35
  5. Step 5: Solve for x
    x = 135,562,487.35/13,905.54
  6. Step 6: Final answer
    x = 9,748.81

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1.5x scale

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.