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Finding the Fourth Proportional to 8,735.80, 13,103.70 and 7,277.80

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Solution

The fourth proportional to 8,735.80, 13,103.70 and 7,277.80 is: 10,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.80 : 13,103.70 = 7,277.80 : x
  2. Step 2: Convert to fraction form
    8,735.80/13,103.70 = 7,277.80/x
  3. Step 3: Cross multiply
    8,735.80x = 13,103.70 × 7,277.80
  4. Step 4: Simplify right side
    8,735.80x = 95,366,107.86
  5. Step 5: Solve for x
    x = 95,366,107.86/8,735.80
  6. Step 6: Final answer
    x = 10,916.70

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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.