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Finding the Fourth Proportional to 17,813.28, 26,726.28 and 7,951.68

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Solution

The fourth proportional to 17,813.28, 26,726.28 and 7,951.68 is: 11,930.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,813.28 : 26,726.28 = 7,951.68 : x
  2. Step 2: Convert to fraction form
    17,813.28/26,726.28 = 7,951.68/x
  3. Step 3: Cross multiply
    17,813.28x = 26,726.28 × 7,951.68
  4. Step 4: Simplify right side
    17,813.28x = 212,518,826.15
  5. Step 5: Solve for x
    x = 212,518,826.15/17,813.28
  6. Step 6: Final answer
    x = 11,930.36

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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.