Home / 8,451.14-12,678.77-2,904.56

Finding the Fourth Proportional to 8,451.14, 12,678.77 and 2,904.56

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Solution

The fourth proportional to 8,451.14, 12,678.77 and 2,904.56 is: 4,357.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.14 : 12,678.77 = 2,904.56 : x
  2. Step 2: Convert to fraction form
    8,451.14/12,678.77 = 2,904.56/x
  3. Step 3: Cross multiply
    8,451.14x = 12,678.77 × 2,904.56
  4. Step 4: Simplify right side
    8,451.14x = 36,826,239.60
  5. Step 5: Solve for x
    x = 36,826,239.60/8,451.14
  6. Step 6: Final answer
    x = 4,357.55

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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.