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Finding the Fourth Proportional to 15,193.37, 20,965.43 and 8,818.27

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Solution

The fourth proportional to 15,193.37, 20,965.43 and 8,818.27 is: 12,168.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,193.37 : 20,965.43 = 8,818.27 : x
  2. Step 2: Convert to fraction form
    15,193.37/20,965.43 = 8,818.27/x
  3. Step 3: Cross multiply
    15,193.37x = 20,965.43 × 8,818.27
  4. Step 4: Simplify right side
    15,193.37x = 184,878,792.04
  5. Step 5: Solve for x
    x = 184,878,792.04/15,193.37
  6. Step 6: Final answer
    x = 12,168.38

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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.