Home / 8,228.80-11,355.04-4,643.68

Finding the Fourth Proportional to 8,228.80, 11,355.04 and 4,643.68

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Solution

The fourth proportional to 8,228.80, 11,355.04 and 4,643.68 is: 6,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.80 : 11,355.04 = 4,643.68 : x
  2. Step 2: Convert to fraction form
    8,228.80/11,355.04 = 4,643.68/x
  3. Step 3: Cross multiply
    8,228.80x = 11,355.04 × 4,643.68
  4. Step 4: Simplify right side
    8,228.80x = 52,729,172.15
  5. Step 5: Solve for x
    x = 52,729,172.15/8,228.80
  6. Step 6: Final answer
    x = 6,407.88

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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.