Home / 8,421.93-12,628.62-2,873.34

Finding the Fourth Proportional to 8,421.93, 12,628.62 and 2,873.34

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Solution

The fourth proportional to 8,421.93, 12,628.62 and 2,873.34 is: 4,308.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.93 : 12,628.62 = 2,873.34 : x
  2. Step 2: Convert to fraction form
    8,421.93/12,628.62 = 2,873.34/x
  3. Step 3: Cross multiply
    8,421.93x = 12,628.62 × 2,873.34
  4. Step 4: Simplify right side
    8,421.93x = 36,286,318.99
  5. Step 5: Solve for x
    x = 36,286,318.99/8,421.93
  6. Step 6: Final answer
    x = 4,308.55

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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.