Home / 13,322.20-19,884.50-11,535.28

Finding the Fourth Proportional to 13,322.20, 19,884.50 and 11,535.28

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Solution

The fourth proportional to 13,322.20, 19,884.50 and 11,535.28 is: 17,217.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.20 : 19,884.50 = 11,535.28 : x
  2. Step 2: Convert to fraction form
    13,322.20/19,884.50 = 11,535.28/x
  3. Step 3: Cross multiply
    13,322.20x = 19,884.50 × 11,535.28
  4. Step 4: Simplify right side
    13,322.20x = 229,373,275.16
  5. Step 5: Solve for x
    x = 229,373,275.16/13,322.20
  6. Step 6: Final answer
    x = 17,217.37

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.