Home / 19,131.24-28,655.22-11,713.20

Finding the Fourth Proportional to 19,131.24, 28,655.22 and 11,713.20

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Solution

The fourth proportional to 19,131.24, 28,655.22 and 11,713.20 is: 17,544.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.24 : 28,655.22 = 11,713.20 : x
  2. Step 2: Convert to fraction form
    19,131.24/28,655.22 = 11,713.20/x
  3. Step 3: Cross multiply
    19,131.24x = 28,655.22 × 11,713.20
  4. Step 4: Simplify right side
    19,131.24x = 335,644,322.90
  5. Step 5: Solve for x
    x = 335,644,322.90/19,131.24
  6. Step 6: Final answer
    x = 17,544.31

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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.