Home / 8,464.94-11,682.90-5,278.75

Finding the Fourth Proportional to 8,464.94, 11,682.90 and 5,278.75

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Solution

The fourth proportional to 8,464.94, 11,682.90 and 5,278.75 is: 7,285.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464.94 : 11,682.90 = 5,278.75 : x
  2. Step 2: Convert to fraction form
    8,464.94/11,682.90 = 5,278.75/x
  3. Step 3: Cross multiply
    8,464.94x = 11,682.90 × 5,278.75
  4. Step 4: Simplify right side
    8,464.94x = 61,671,108.38
  5. Step 5: Solve for x
    x = 61,671,108.38/8,464.94
  6. Step 6: Final answer
    x = 7,285.47

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Half scale
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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.