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Finding the Fourth Proportional to 17,390.40, 26,079.41 and 6,294.21

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Solution

The fourth proportional to 17,390.40, 26,079.41 and 6,294.21 is: 9,439.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.40 : 26,079.41 = 6,294.21 : x
  2. Step 2: Convert to fraction form
    17,390.40/26,079.41 = 6,294.21/x
  3. Step 3: Cross multiply
    17,390.40x = 26,079.41 × 6,294.21
  4. Step 4: Simplify right side
    17,390.40x = 164,149,251.75
  5. Step 5: Solve for x
    x = 164,149,251.75/17,390.40
  6. Step 6: Final answer
    x = 9,439.07

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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.