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Finding the Fourth Proportional to 11,287.76, 16,935.75 and 7,338.74

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Solution

The fourth proportional to 11,287.76, 16,935.75 and 7,338.74 is: 11,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.76 : 16,935.75 = 7,338.74 : x
  2. Step 2: Convert to fraction form
    11,287.76/16,935.75 = 7,338.74/x
  3. Step 3: Cross multiply
    11,287.76x = 16,935.75 × 7,338.74
  4. Step 4: Simplify right side
    11,287.76x = 124,286,981.28
  5. Step 5: Solve for x
    x = 124,286,981.28/11,287.76
  6. Step 6: Final answer
    x = 11,010.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.