Home / 18,293.58-25,247.01-13,193.31

Finding the Fourth Proportional to 18,293.58, 25,247.01 and 13,193.31

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Solution

The fourth proportional to 18,293.58, 25,247.01 and 13,193.31 is: 18,208.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.58 : 25,247.01 = 13,193.31 : x
  2. Step 2: Convert to fraction form
    18,293.58/25,247.01 = 13,193.31/x
  3. Step 3: Cross multiply
    18,293.58x = 25,247.01 × 13,193.31
  4. Step 4: Simplify right side
    18,293.58x = 333,091,629.50
  5. Step 5: Solve for x
    x = 333,091,629.50/18,293.58
  6. Step 6: Final answer
    x = 18,208.12

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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.