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Finding the Fourth Proportional to 8,805.58, 13,212.70 and 3,540.38

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Solution

The fourth proportional to 8,805.58, 13,212.70 and 3,540.38 is: 5,312.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,805.58 : 13,212.70 = 3,540.38 : x
  2. Step 2: Convert to fraction form
    8,805.58/13,212.70 = 3,540.38/x
  3. Step 3: Cross multiply
    8,805.58x = 13,212.70 × 3,540.38
  4. Step 4: Simplify right side
    8,805.58x = 46,777,903.91
  5. Step 5: Solve for x
    x = 46,777,903.91/8,805.58
  6. Step 6: Final answer
    x = 5,312.30

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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.