Home / 18,242.65-25,140.45-13,198.33

Finding the Fourth Proportional to 18,242.65, 25,140.45 and 13,198.33

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Solution

The fourth proportional to 18,242.65, 25,140.45 and 13,198.33 is: 18,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,242.65 : 25,140.45 = 13,198.33 : x
  2. Step 2: Convert to fraction form
    18,242.65/25,140.45 = 13,198.33/x
  3. Step 3: Cross multiply
    18,242.65x = 25,140.45 × 13,198.33
  4. Step 4: Simplify right side
    18,242.65x = 331,811,955.45
  5. Step 5: Solve for x
    x = 331,811,955.45/18,242.65
  6. Step 6: Final answer
    x = 18,188.80

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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.