Home / 18,675.50-25,770.96-11,122.38

Finding the Fourth Proportional to 18,675.50, 25,770.96 and 11,122.38

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Solution

The fourth proportional to 18,675.50, 25,770.96 and 11,122.38 is: 15,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,675.50 : 25,770.96 = 11,122.38 : x
  2. Step 2: Convert to fraction form
    18,675.50/25,770.96 = 11,122.38/x
  3. Step 3: Cross multiply
    18,675.50x = 25,770.96 × 11,122.38
  4. Step 4: Simplify right side
    18,675.50x = 286,634,410.08
  5. Step 5: Solve for x
    x = 286,634,410.08/18,675.50
  6. Step 6: Final answer
    x = 15,348.16

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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.