Home / 13,008.20-19,490.70-11,150.60

Finding the Fourth Proportional to 13,008.20, 19,490.70 and 11,150.60

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Solution

The fourth proportional to 13,008.20, 19,490.70 and 11,150.60 is: 16,707.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,008.20 : 19,490.70 = 11,150.60 : x
  2. Step 2: Convert to fraction form
    13,008.20/19,490.70 = 11,150.60/x
  3. Step 3: Cross multiply
    13,008.20x = 19,490.70 × 11,150.60
  4. Step 4: Simplify right side
    13,008.20x = 217,332,999.42
  5. Step 5: Solve for x
    x = 217,332,999.42/13,008.20
  6. Step 6: Final answer
    x = 16,707.38

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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.