Home / 17,713.60-26,548.80-13,091.20

Finding the Fourth Proportional to 17,713.60, 26,548.80 and 13,091.20

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Solution

The fourth proportional to 17,713.60, 26,548.80 and 13,091.20 is: 19,620.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,713.60 : 26,548.80 = 13,091.20 : x
  2. Step 2: Convert to fraction form
    17,713.60/26,548.80 = 13,091.20/x
  3. Step 3: Cross multiply
    17,713.60x = 26,548.80 × 13,091.20
  4. Step 4: Simplify right side
    17,713.60x = 347,555,650.56
  5. Step 5: Solve for x
    x = 347,555,650.56/17,713.60
  6. Step 6: Final answer
    x = 19,620.84

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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.