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Finding the Fourth Proportional to 14,745.57, 20,363.37 and 12,608.79

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Solution

The fourth proportional to 14,745.57, 20,363.37 and 12,608.79 is: 17,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,745.57 : 20,363.37 = 12,608.79 : x
  2. Step 2: Convert to fraction form
    14,745.57/20,363.37 = 12,608.79/x
  3. Step 3: Cross multiply
    14,745.57x = 20,363.37 × 12,608.79
  4. Step 4: Simplify right side
    14,745.57x = 256,757,456.02
  5. Step 5: Solve for x
    x = 256,757,456.02/14,745.57
  6. Step 6: Final answer
    x = 17,412.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.