Home / 13,314.40-19,945.20-11,672.80

Finding the Fourth Proportional to 13,314.40, 19,945.20 and 11,672.80

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Solution

The fourth proportional to 13,314.40, 19,945.20 and 11,672.80 is: 17,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,314.40 : 19,945.20 = 11,672.80 : x
  2. Step 2: Convert to fraction form
    13,314.40/19,945.20 = 11,672.80/x
  3. Step 3: Cross multiply
    13,314.40x = 19,945.20 × 11,672.80
  4. Step 4: Simplify right side
    13,314.40x = 232,816,330.56
  5. Step 5: Solve for x
    x = 232,816,330.56/13,314.40
  6. Step 6: Final answer
    x = 17,486.05

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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.