Home / 8,355.12-12,533.33-2,808.42

Finding the Fourth Proportional to 8,355.12, 12,533.33 and 2,808.42

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Solution

The fourth proportional to 8,355.12, 12,533.33 and 2,808.42 is: 4,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.12 : 12,533.33 = 2,808.42 : x
  2. Step 2: Convert to fraction form
    8,355.12/12,533.33 = 2,808.42/x
  3. Step 3: Cross multiply
    8,355.12x = 12,533.33 × 2,808.42
  4. Step 4: Simplify right side
    8,355.12x = 35,198,854.64
  5. Step 5: Solve for x
    x = 35,198,854.64/8,355.12
  6. Step 6: Final answer
    x = 4,212.85

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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.