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Finding the Fourth Proportional to 6,392.65, 9,543.33 and 5,408.23

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Solution

The fourth proportional to 6,392.65, 9,543.33 and 5,408.23 is: 8,073.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392.65 : 9,543.33 = 5,408.23 : x
  2. Step 2: Convert to fraction form
    6,392.65/9,543.33 = 5,408.23/x
  3. Step 3: Cross multiply
    6,392.65x = 9,543.33 × 5,408.23
  4. Step 4: Simplify right side
    6,392.65x = 51,612,523.61
  5. Step 5: Solve for x
    x = 51,612,523.61/6,392.65
  6. Step 6: Final answer
    x = 8,073.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.