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Finding the Fourth Proportional to 17,182.80, 25,735.80 and 13,256.40

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Solution

The fourth proportional to 17,182.80, 25,735.80 and 13,256.40 is: 19,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,182.80 : 25,735.80 = 13,256.40 : x
  2. Step 2: Convert to fraction form
    17,182.80/25,735.80 = 13,256.40/x
  3. Step 3: Cross multiply
    17,182.80x = 25,735.80 × 13,256.40
  4. Step 4: Simplify right side
    17,182.80x = 341,164,059.12
  5. Step 5: Solve for x
    x = 341,164,059.12/17,182.80
  6. Step 6: Final answer
    x = 19,854.97

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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.