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Finding the Fourth Proportional to 11,338.76, 17,008.11 and 3,018.78

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Solution

The fourth proportional to 11,338.76, 17,008.11 and 3,018.78 is: 4,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,338.76 : 17,008.11 = 3,018.78 : x
  2. Step 2: Convert to fraction form
    11,338.76/17,008.11 = 3,018.78/x
  3. Step 3: Cross multiply
    11,338.76x = 17,008.11 × 3,018.78
  4. Step 4: Simplify right side
    11,338.76x = 51,343,742.31
  5. Step 5: Solve for x
    x = 51,343,742.31/11,338.76
  6. Step 6: Final answer
    x = 4,528.16

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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.