Home / 8,228.40-11,355.15-4,451.58

Finding the Fourth Proportional to 8,228.40, 11,355.15 and 4,451.58

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Solution

The fourth proportional to 8,228.40, 11,355.15 and 4,451.58 is: 6,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,228.40 : 11,355.15 = 4,451.58 : x
  2. Step 2: Convert to fraction form
    8,228.40/11,355.15 = 4,451.58/x
  3. Step 3: Cross multiply
    8,228.40x = 11,355.15 × 4,451.58
  4. Step 4: Simplify right side
    8,228.40x = 50,548,358.64
  5. Step 5: Solve for x
    x = 50,548,358.64/8,228.40
  6. Step 6: Final answer
    x = 6,143.16

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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.