Home / 13,816.38-19,069.10-8,150.80

Finding the Fourth Proportional to 13,816.38, 19,069.10 and 8,150.80

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Solution

The fourth proportional to 13,816.38, 19,069.10 and 8,150.80 is: 11,249.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,816.38 : 19,069.10 = 8,150.80 : x
  2. Step 2: Convert to fraction form
    13,816.38/19,069.10 = 8,150.80/x
  3. Step 3: Cross multiply
    13,816.38x = 19,069.10 × 8,150.80
  4. Step 4: Simplify right side
    13,816.38x = 155,428,420.28
  5. Step 5: Solve for x
    x = 155,428,420.28/13,816.38
  6. Step 6: Final answer
    x = 11,249.58

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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.