Home / 7,887.52-11,827.86-4,188.94

Finding the Fourth Proportional to 7,887.52, 11,827.86 and 4,188.94

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Solution

The fourth proportional to 7,887.52, 11,827.86 and 4,188.94 is: 6,281.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.52 : 11,827.86 = 4,188.94 : x
  2. Step 2: Convert to fraction form
    7,887.52/11,827.86 = 4,188.94/x
  3. Step 3: Cross multiply
    7,887.52x = 11,827.86 × 4,188.94
  4. Step 4: Simplify right side
    7,887.52x = 49,546,195.87
  5. Step 5: Solve for x
    x = 49,546,195.87/7,887.52
  6. Step 6: Final answer
    x = 6,281.59

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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.