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Finding the Fourth Proportional to 17,674.32, 26,511.48 and 9,878.88

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Solution

The fourth proportional to 17,674.32, 26,511.48 and 9,878.88 is: 14,818.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,674.32 : 26,511.48 = 9,878.88 : x
  2. Step 2: Convert to fraction form
    17,674.32/26,511.48 = 9,878.88/x
  3. Step 3: Cross multiply
    17,674.32x = 26,511.48 × 9,878.88
  4. Step 4: Simplify right side
    17,674.32x = 261,903,729.54
  5. Step 5: Solve for x
    x = 261,903,729.54/17,674.32
  6. Step 6: Final answer
    x = 14,818.32

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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.