Home / 13,763.28-18,984.87-11,999.10

Finding the Fourth Proportional to 13,763.28, 18,984.87 and 11,999.10

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Solution

The fourth proportional to 13,763.28, 18,984.87 and 11,999.10 is: 16,551.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.28 : 18,984.87 = 11,999.10 : x
  2. Step 2: Convert to fraction form
    13,763.28/18,984.87 = 11,999.10/x
  3. Step 3: Cross multiply
    13,763.28x = 18,984.87 × 11,999.10
  4. Step 4: Simplify right side
    13,763.28x = 227,801,353.62
  5. Step 5: Solve for x
    x = 227,801,353.62/13,763.28
  6. Step 6: Final answer
    x = 16,551.39

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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.