Home / 11,887.87-16,405.33-6,582.78

Finding the Fourth Proportional to 11,887.87, 16,405.33 and 6,582.78

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Solution

The fourth proportional to 11,887.87, 16,405.33 and 6,582.78 is: 9,084.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,887.87 : 16,405.33 = 6,582.78 : x
  2. Step 2: Convert to fraction form
    11,887.87/16,405.33 = 6,582.78/x
  3. Step 3: Cross multiply
    11,887.87x = 16,405.33 × 6,582.78
  4. Step 4: Simplify right side
    11,887.87x = 107,992,678.22
  5. Step 5: Solve for x
    x = 107,992,678.22/11,887.87
  6. Step 6: Final answer
    x = 9,084.27

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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.