Home / 18,770.56-25,899.01-11,219.33

Finding the Fourth Proportional to 18,770.56, 25,899.01 and 11,219.33

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Solution

The fourth proportional to 18,770.56, 25,899.01 and 11,219.33 is: 15,480.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.56 : 25,899.01 = 11,219.33 : x
  2. Step 2: Convert to fraction form
    18,770.56/25,899.01 = 11,219.33/x
  3. Step 3: Cross multiply
    18,770.56x = 25,899.01 × 11,219.33
  4. Step 4: Simplify right side
    18,770.56x = 290,569,539.86
  5. Step 5: Solve for x
    x = 290,569,539.86/18,770.56
  6. Step 6: Final answer
    x = 15,480.07

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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.