Home / 8,121.84-11,200.37-4,935.66

Finding the Fourth Proportional to 8,121.84, 11,200.37 and 4,935.66

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Solution

The fourth proportional to 8,121.84, 11,200.37 and 4,935.66 is: 6,806.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,121.84 : 11,200.37 = 4,935.66 : x
  2. Step 2: Convert to fraction form
    8,121.84/11,200.37 = 4,935.66/x
  3. Step 3: Cross multiply
    8,121.84x = 11,200.37 × 4,935.66
  4. Step 4: Simplify right side
    8,121.84x = 55,281,193.52
  5. Step 5: Solve for x
    x = 55,281,193.52/8,121.84
  6. Step 6: Final answer
    x = 6,806.49

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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.