Home / 13,772.03-20,657.30-8,076.16

Finding the Fourth Proportional to 13,772.03, 20,657.30 and 8,076.16

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Solution

The fourth proportional to 13,772.03, 20,657.30 and 8,076.16 is: 12,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.03 : 20,657.30 = 8,076.16 : x
  2. Step 2: Convert to fraction form
    13,772.03/20,657.30 = 8,076.16/x
  3. Step 3: Cross multiply
    13,772.03x = 20,657.30 × 8,076.16
  4. Step 4: Simplify right side
    13,772.03x = 166,831,529.21
  5. Step 5: Solve for x
    x = 166,831,529.21/13,772.03
  6. Step 6: Final answer
    x = 12,113.80

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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.