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Finding the Fourth Proportional to 18,065.26, 27,080.28 and 7,538.32

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Solution

The fourth proportional to 18,065.26, 27,080.28 and 7,538.32 is: 11,300.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.26 : 27,080.28 = 7,538.32 : x
  2. Step 2: Convert to fraction form
    18,065.26/27,080.28 = 7,538.32/x
  3. Step 3: Cross multiply
    18,065.26x = 27,080.28 × 7,538.32
  4. Step 4: Simplify right side
    18,065.26x = 204,139,816.33
  5. Step 5: Solve for x
    x = 204,139,816.33/18,065.26
  6. Step 6: Final answer
    x = 11,300.13

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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.