Home / 8,220.80-11,345.28-4,494.72

Finding the Fourth Proportional to 8,220.80, 11,345.28 and 4,494.72

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Solution

The fourth proportional to 8,220.80, 11,345.28 and 4,494.72 is: 6,203.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.80 : 11,345.28 = 4,494.72 : x
  2. Step 2: Convert to fraction form
    8,220.80/11,345.28 = 4,494.72/x
  3. Step 3: Cross multiply
    8,220.80x = 11,345.28 × 4,494.72
  4. Step 4: Simplify right side
    8,220.80x = 50,993,856.92
  5. Step 5: Solve for x
    x = 50,993,856.92/8,220.80
  6. Step 6: Final answer
    x = 6,203.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.