Home / 11,584.05-15,985.86-6,278.91

Finding the Fourth Proportional to 11,584.05, 15,985.86 and 6,278.91

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Solution

The fourth proportional to 11,584.05, 15,985.86 and 6,278.91 is: 8,664.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,584.05 : 15,985.86 = 6,278.91 : x
  2. Step 2: Convert to fraction form
    11,584.05/15,985.86 = 6,278.91/x
  3. Step 3: Cross multiply
    11,584.05x = 15,985.86 × 6,278.91
  4. Step 4: Simplify right side
    11,584.05x = 100,373,776.21
  5. Step 5: Solve for x
    x = 100,373,776.21/11,584.05
  6. Step 6: Final answer
    x = 8,664.83

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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.