Home / 8,821.35-13,237.20-3,558.90

Finding the Fourth Proportional to 8,821.35, 13,237.20 and 3,558.90

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Solution

The fourth proportional to 8,821.35, 13,237.20 and 3,558.90 is: 5,340.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,821.35 : 13,237.20 = 3,558.90 : x
  2. Step 2: Convert to fraction form
    8,821.35/13,237.20 = 3,558.90/x
  3. Step 3: Cross multiply
    8,821.35x = 13,237.20 × 3,558.90
  4. Step 4: Simplify right side
    8,821.35x = 47,109,871.08
  5. Step 5: Solve for x
    x = 47,109,871.08/8,821.35
  6. Step 6: Final answer
    x = 5,340.44

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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.