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Finding the Fourth Proportional to 17,969.34, 26,953.98 and 5,489.40

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Solution

The fourth proportional to 17,969.34, 26,953.98 and 5,489.40 is: 8,234.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,969.34 : 26,953.98 = 5,489.40 : x
  2. Step 2: Convert to fraction form
    17,969.34/26,953.98 = 5,489.40/x
  3. Step 3: Cross multiply
    17,969.34x = 26,953.98 × 5,489.40
  4. Step 4: Simplify right side
    17,969.34x = 147,961,177.81
  5. Step 5: Solve for x
    x = 147,961,177.81/17,969.34
  6. Step 6: Final answer
    x = 8,234.09

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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.