Home / 13,255.80-19,932.30-11,117.40

Finding the Fourth Proportional to 13,255.80, 19,932.30 and 11,117.40

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Solution

The fourth proportional to 13,255.80, 19,932.30 and 11,117.40 is: 16,716.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,255.80 : 19,932.30 = 11,117.40 : x
  2. Step 2: Convert to fraction form
    13,255.80/19,932.30 = 11,117.40/x
  3. Step 3: Cross multiply
    13,255.80x = 19,932.30 × 11,117.40
  4. Step 4: Simplify right side
    13,255.80x = 221,595,352.02
  5. Step 5: Solve for x
    x = 221,595,352.02/13,255.80
  6. Step 6: Final answer
    x = 16,716.86

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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.