Home / 13,076.50-18,020.37-8,352.58

Finding the Fourth Proportional to 13,076.50, 18,020.37 and 8,352.58

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Solution

The fourth proportional to 13,076.50, 18,020.37 and 8,352.58 is: 11,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076.50 : 18,020.37 = 8,352.58 : x
  2. Step 2: Convert to fraction form
    13,076.50/18,020.37 = 8,352.58/x
  3. Step 3: Cross multiply
    13,076.50x = 18,020.37 × 8,352.58
  4. Step 4: Simplify right side
    13,076.50x = 150,516,582.05
  5. Step 5: Solve for x
    x = 150,516,582.05/13,076.50
  6. Step 6: Final answer
    x = 11,510.46

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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.