Home / 13,076.47-18,048.41-8,600.64

Finding the Fourth Proportional to 13,076.47, 18,048.41 and 8,600.64

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Solution

The fourth proportional to 13,076.47, 18,048.41 and 8,600.64 is: 11,870.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.47 : 18,048.41 = 8,600.64 : x
  2. Step 2: Convert to fraction form
    13,076.47/18,048.41 = 8,600.64/x
  3. Step 3: Cross multiply
    13,076.47x = 18,048.41 × 8,600.64
  4. Step 4: Simplify right side
    13,076.47x = 155,227,876.98
  5. Step 5: Solve for x
    x = 155,227,876.98/13,076.47
  6. Step 6: Final answer
    x = 11,870.78

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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.