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Finding the Fourth Proportional to 8,539.57, 12,809.36 and 2,700.28

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Solution

The fourth proportional to 8,539.57, 12,809.36 and 2,700.28 is: 4,050.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,539.57 : 12,809.36 = 2,700.28 : x
  2. Step 2: Convert to fraction form
    8,539.57/12,809.36 = 2,700.28/x
  3. Step 3: Cross multiply
    8,539.57x = 12,809.36 × 2,700.28
  4. Step 4: Simplify right side
    8,539.57x = 34,588,845.12
  5. Step 5: Solve for x
    x = 34,588,845.12/8,539.57
  6. Step 6: Final answer
    x = 4,050.42

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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.