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Finding the Fourth Proportional to 8,822.35, 13,238.70 and 3,559.90

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Solution

The fourth proportional to 8,822.35, 13,238.70 and 3,559.90 is: 5,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,822.35 : 13,238.70 = 3,559.90 : x
  2. Step 2: Convert to fraction form
    8,822.35/13,238.70 = 3,559.90/x
  3. Step 3: Cross multiply
    8,822.35x = 13,238.70 × 3,559.90
  4. Step 4: Simplify right side
    8,822.35x = 47,128,448.13
  5. Step 5: Solve for x
    x = 47,128,448.13/8,822.35
  6. Step 6: Final answer
    x = 5,341.94

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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.