Home / 13,192.08-18,200.10-8,657.28

Finding the Fourth Proportional to 13,192.08, 18,200.10 and 8,657.28

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Solution

The fourth proportional to 13,192.08, 18,200.10 and 8,657.28 is: 11,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,192.08 : 18,200.10 = 8,657.28 : x
  2. Step 2: Convert to fraction form
    13,192.08/18,200.10 = 8,657.28/x
  3. Step 3: Cross multiply
    13,192.08x = 18,200.10 × 8,657.28
  4. Step 4: Simplify right side
    13,192.08x = 157,563,361.73
  5. Step 5: Solve for x
    x = 157,563,361.73/13,192.08
  6. Step 6: Final answer
    x = 11,943.78

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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.