Home / 8,125.16-11,212.71-4,939.48

Finding the Fourth Proportional to 8,125.16, 11,212.71 and 4,939.48

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Solution

The fourth proportional to 8,125.16, 11,212.71 and 4,939.48 is: 6,816.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.16 : 11,212.71 = 4,939.48 : x
  2. Step 2: Convert to fraction form
    8,125.16/11,212.71 = 4,939.48/x
  3. Step 3: Cross multiply
    8,125.16x = 11,212.71 × 4,939.48
  4. Step 4: Simplify right side
    8,125.16x = 55,384,980.07
  5. Step 5: Solve for x
    x = 55,384,980.07/8,125.16
  6. Step 6: Final answer
    x = 6,816.48

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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.