Home / 8,081.39-11,140.28-4,935.47

Finding the Fourth Proportional to 8,081.39, 11,140.28 and 4,935.47

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Solution

The fourth proportional to 8,081.39, 11,140.28 and 4,935.47 is: 6,803.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.39 : 11,140.28 = 4,935.47 : x
  2. Step 2: Convert to fraction form
    8,081.39/11,140.28 = 4,935.47/x
  3. Step 3: Cross multiply
    8,081.39x = 11,140.28 × 4,935.47
  4. Step 4: Simplify right side
    8,081.39x = 54,982,493.05
  5. Step 5: Solve for x
    x = 54,982,493.05/8,081.39
  6. Step 6: Final answer
    x = 6,803.59

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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.