Home / 8,125.45-11,216.58-4,939.77

Finding the Fourth Proportional to 8,125.45, 11,216.58 and 4,939.77

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Solution

The fourth proportional to 8,125.45, 11,216.58 and 4,939.77 is: 6,818.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.45 : 11,216.58 = 4,939.77 : x
  2. Step 2: Convert to fraction form
    8,125.45/11,216.58 = 4,939.77/x
  3. Step 3: Cross multiply
    8,125.45x = 11,216.58 × 4,939.77
  4. Step 4: Simplify right side
    8,125.45x = 55,407,296.39
  5. Step 5: Solve for x
    x = 55,407,296.39/8,125.45
  6. Step 6: Final answer
    x = 6,818.98

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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.