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Finding the Fourth Proportional to 17,774.80, 26,665.08 and 7,387.12

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Solution

The fourth proportional to 17,774.80, 26,665.08 and 7,387.12 is: 11,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,774.80 : 26,665.08 = 7,387.12 : x
  2. Step 2: Convert to fraction form
    17,774.80/26,665.08 = 7,387.12/x
  3. Step 3: Cross multiply
    17,774.80x = 26,665.08 × 7,387.12
  4. Step 4: Simplify right side
    17,774.80x = 196,978,145.77
  5. Step 5: Solve for x
    x = 196,978,145.77/17,774.80
  6. Step 6: Final answer
    x = 11,081.88

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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.