Home / 13,375.23-18,458.10-7,325.73

Finding the Fourth Proportional to 13,375.23, 18,458.10 and 7,325.73

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Solution

The fourth proportional to 13,375.23, 18,458.10 and 7,325.73 is: 10,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,375.23 : 18,458.10 = 7,325.73 : x
  2. Step 2: Convert to fraction form
    13,375.23/18,458.10 = 7,325.73/x
  3. Step 3: Cross multiply
    13,375.23x = 18,458.10 × 7,325.73
  4. Step 4: Simplify right side
    13,375.23x = 135,219,056.91
  5. Step 5: Solve for x
    x = 135,219,056.91/13,375.23
  6. Step 6: Final answer
    x = 10,109.66

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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.