Home / 13,772.56-18,997.62-12,008.38

Finding the Fourth Proportional to 13,772.56, 18,997.62 and 12,008.38

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Solution

The fourth proportional to 13,772.56, 18,997.62 and 12,008.38 is: 16,564.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,772.56 : 18,997.62 = 12,008.38 : x
  2. Step 2: Convert to fraction form
    13,772.56/18,997.62 = 12,008.38/x
  3. Step 3: Cross multiply
    13,772.56x = 18,997.62 × 12,008.38
  4. Step 4: Simplify right side
    13,772.56x = 228,130,640.06
  5. Step 5: Solve for x
    x = 228,130,640.06/13,772.56
  6. Step 6: Final answer
    x = 16,564.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.