Home / 8,119.57-11,205.39-4,935.07

Finding the Fourth Proportional to 8,119.57, 11,205.39 and 4,935.07

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Solution

The fourth proportional to 8,119.57, 11,205.39 and 4,935.07 is: 6,810.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.57 : 11,205.39 = 4,935.07 : x
  2. Step 2: Convert to fraction form
    8,119.57/11,205.39 = 4,935.07/x
  3. Step 3: Cross multiply
    8,119.57x = 11,205.39 × 4,935.07
  4. Step 4: Simplify right side
    8,119.57x = 55,299,384.03
  5. Step 5: Solve for x
    x = 55,299,384.03/8,119.57
  6. Step 6: Final answer
    x = 6,810.63

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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.