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Finding the Fourth Proportional to 26,813.44, 40,220.16 and 8,346.88

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Solution

The fourth proportional to 26,813.44, 40,220.16 and 8,346.88 is: 12,520.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,813.44 : 40,220.16 = 8,346.88 : x
  2. Step 2: Convert to fraction form
    26,813.44/40,220.16 = 8,346.88/x
  3. Step 3: Cross multiply
    26,813.44x = 40,220.16 × 8,346.88
  4. Step 4: Simplify right side
    26,813.44x = 335,712,849.10
  5. Step 5: Solve for x
    x = 335,712,849.10/26,813.44
  6. Step 6: Final answer
    x = 12,520.32

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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.