Home / 8,942.82-12,340.64-4,909.54

Finding the Fourth Proportional to 8,942.82, 12,340.64 and 4,909.54

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Solution

The fourth proportional to 8,942.82, 12,340.64 and 4,909.54 is: 6,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.82 : 12,340.64 = 4,909.54 : x
  2. Step 2: Convert to fraction form
    8,942.82/12,340.64 = 4,909.54/x
  3. Step 3: Cross multiply
    8,942.82x = 12,340.64 × 4,909.54
  4. Step 4: Simplify right side
    8,942.82x = 60,586,865.71
  5. Step 5: Solve for x
    x = 60,586,865.71/8,942.82
  6. Step 6: Final answer
    x = 6,774.92

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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.